diff --git a/src/renderer/components/+apps-releases/release.store.ts b/src/renderer/components/+apps-releases/release.store.ts
index 0ca6f45b39..9548e494f7 100644
--- a/src/renderer/components/+apps-releases/release.store.ts
+++ b/src/renderer/components/+apps-releases/release.store.ts
@@ -73,8 +73,8 @@ export class ReleaseStore extends ItemStore<HelmRelease> {
     }
   }
 
-  async loadSelectedNamespaces(): Promise<void> {
-    return this.loadAll(namespaceStore.getContextNamespaces());
+  async loadFromContextNamespaces(): Promise<void> {
+    return this.loadAll(namespaceStore.contextNamespaces);
   }
 
   async loadItems(namespaces: string[]) {
@@ -86,7 +86,7 @@ export class ReleaseStore extends ItemStore<HelmRelease> {
   async create(payload: IReleaseCreatePayload) {
     const response = await helmReleasesApi.create(payload);
 
-    if (this.isLoaded) this.loadSelectedNamespaces();
+    if (this.isLoaded) this.loadFromContextNamespaces();
 
     return response;
   }
@@ -94,7 +94,7 @@ export class ReleaseStore extends ItemStore<HelmRelease> {
   async update(name: string, namespace: string, payload: IReleaseUpdatePayload) {
     const response = await helmReleasesApi.update(name, namespace, payload);
 
-    if (this.isLoaded) this.loadSelectedNamespaces();
+    if (this.isLoaded) this.loadFromContextNamespaces();
 
     return response;
   }
@@ -102,7 +102,7 @@ export class ReleaseStore extends ItemStore<HelmRelease> {
   async rollback(name: string, namespace: string, revision: number) {
     const response = await helmReleasesApi.rollback(name, namespace, revision);
 
-    if (this.isLoaded) this.loadSelectedNamespaces();
+    if (this.isLoaded) this.loadFromContextNamespaces();
 
     return response;
   }
diff --git a/src/renderer/components/+custom-resources/crd-resources.tsx b/src/renderer/components/+custom-resources/crd-resources.tsx
index 1503267c24..4a9290eb4e 100644
--- a/src/renderer/components/+custom-resources/crd-resources.tsx
+++ b/src/renderer/components/+custom-resources/crd-resources.tsx
@@ -30,7 +30,7 @@ export class CrdResources extends React.Component<Props> {
         const { store } = this;
 
         if (store && !store.isLoading && !store.isLoaded) {
-          store.loadContextNamespaces();
+          store.loadAllFromContextNamespaces();
         }
       })
     ]);
diff --git a/src/renderer/components/+events/kube-event-details.tsx b/src/renderer/components/+events/kube-event-details.tsx
index b8b3058fb0..9ac4587395 100644
--- a/src/renderer/components/+events/kube-event-details.tsx
+++ b/src/renderer/components/+events/kube-event-details.tsx
@@ -14,7 +14,7 @@ export interface KubeEventDetailsProps {
 @observer
 export class KubeEventDetails extends React.Component<KubeEventDetailsProps> {
   async componentDidMount() {
-    eventStore.loadContextNamespaces();
+    eventStore.loadAllFromContextNamespaces();
   }
 
   render() {
diff --git a/src/renderer/components/+namespaces/namespace-details.tsx b/src/renderer/components/+namespaces/namespace-details.tsx
index c7a4a0e845..c8cf0f6bcb 100644
--- a/src/renderer/components/+namespaces/namespace-details.tsx
+++ b/src/renderer/components/+namespaces/namespace-details.tsx
@@ -32,8 +32,8 @@ export class NamespaceDetails extends React.Component<Props> {
   }
 
   componentDidMount() {
-    resourceQuotaStore.loadContextNamespaces();
-    limitRangeStore.loadContextNamespaces();
+    resourceQuotaStore.loadAllFromContextNamespaces();
+    limitRangeStore.loadAllFromContextNamespaces();
   }
 
   render() {
diff --git a/src/renderer/components/+namespaces/namespace-select.tsx b/src/renderer/components/+namespaces/namespace-select.tsx
index c3d26ba192..27fbb8a311 100644
--- a/src/renderer/components/+namespaces/namespace-select.tsx
+++ b/src/renderer/components/+namespaces/namespace-select.tsx
@@ -82,7 +82,7 @@ export class NamespaceSelect extends React.Component<Props> {
 @observer
 export class NamespaceSelectFilter extends React.Component {
   @computed get placeholder(): React.ReactNode {
-    const namespaces = namespaceStore.getContextNamespaces();
+    const namespaces = namespaceStore.contextNamespaces;
 
     switch (namespaces.length) {
       case 0:
diff --git a/src/renderer/components/+namespaces/namespace.store.ts b/src/renderer/components/+namespaces/namespace.store.ts
index 2b5cf3cbbc..4ea270a3af 100644
--- a/src/renderer/components/+namespaces/namespace.store.ts
+++ b/src/renderer/components/+namespaces/namespace.store.ts
@@ -1,10 +1,9 @@
-import { action, comparer, computed, IReactionDisposer, IReactionOptions, observable, reaction, toJS, when } from "mobx";
+import { action, comparer, computed, IReactionDisposer, IReactionOptions, observable, reaction } from "mobx";
 import { autobind, createStorage } from "../../utils";
 import { KubeObjectStore, KubeObjectStoreLoadingParams } from "../../kube-object.store";
 import { Namespace, namespacesApi } from "../../api/endpoints/namespaces.api";
 import { createPageParam } from "../../navigation";
 import { apiManager } from "../../api/api-manager";
-import { clusterStore, getHostedCluster } from "../../../common/cluster-store";
 
 const storage = createStorage<string[]>("context_namespaces", []);
 
@@ -35,9 +34,6 @@ export class NamespaceStore extends KubeObjectStore<Namespace> {
   api = namespacesApi;
 
   @observable private contextNs = observable.set<string>();
-  @observable isReady = false;
-
-  whenReady = when(() => this.isReady);
 
   constructor() {
     super();
@@ -45,15 +41,12 @@ export class NamespaceStore extends KubeObjectStore<Namespace> {
   }
 
   private async init() {
-    await clusterStore.whenLoaded;
-    if (!getHostedCluster()) return;
-    await getHostedCluster().whenReady; // wait for cluster-state from main
+    await this.resolveCluster();
+    if (!this.cluster) return; // skip for non-cluster context window
 
     this.setContext(this.initialNamespaces);
     this.autoLoadAllowedNamespaces();
     this.autoUpdateUrlAndLocalStorage();
-
-    this.isReady = true;
   }
 
   public onContextChange(callback: (contextNamespaces: string[]) => void, opts: IReactionOptions = {}): IReactionDisposer {
@@ -79,10 +72,6 @@ export class NamespaceStore extends KubeObjectStore<Namespace> {
     });
   }
 
-  @computed get allowedNamespaces(): string[] {
-    return toJS(getHostedCluster().allowedNamespaces);
-  }
-
   @computed
   private get initialNamespaces(): string[] {
     const namespaces = new Set(this.allowedNamespaces);
@@ -103,27 +92,26 @@ export class NamespaceStore extends KubeObjectStore<Namespace> {
     return [];
   }
 
-  getContextNamespaces(): string[] {
+  @computed get allowedNamespaces(): string[] {
+    return Array.from(new Set([
+      ...(this.cluster?.allowedNamespaces ?? []), // loaded names from main, updating every 30s and thus might be stale
+      ...this.items.map(item => item.getName()), // loaded names from hosted cluster
+    ].flat()));
+  }
+
+  @computed get contextNamespaces(): string[] {
     const namespaces = Array.from(this.contextNs);
 
-    // show all namespaces when nothing selected
     if (!namespaces.length) {
-      // return actual namespaces list since "allowedNamespaces" updating every 30s in cluster and thus might be stale
-      if (this.isLoaded) {
-        return this.items.map(namespace => namespace.getName());
-      }
-
-      return this.allowedNamespaces;
+      return this.allowedNamespaces; // show all namespaces when nothing selected
     }
 
     return namespaces;
   }
 
   getSubscribeApis() {
-    const { accessibleNamespaces } = getHostedCluster();
-
     // if user has given static list of namespaces let's not start watches because watch adds stuff that's not wanted
-    if (accessibleNamespaces.length > 0) {
+    if (this.cluster?.accessibleNamespaces.length > 0) {
       return [];
     }
 
@@ -152,7 +140,7 @@ export class NamespaceStore extends KubeObjectStore<Namespace> {
   }
 
   @action
-  resetContext(){
+  resetContext() {
     this.contextNs.clear();
   }
 
diff --git a/src/renderer/components/+nodes/node-details.tsx b/src/renderer/components/+nodes/node-details.tsx
index fb5da8b20f..455005db25 100644
--- a/src/renderer/components/+nodes/node-details.tsx
+++ b/src/renderer/components/+nodes/node-details.tsx
@@ -29,7 +29,7 @@ export class NodeDetails extends React.Component<Props> {
   });
 
   async componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   componentWillUnmount() {
diff --git a/src/renderer/components/+user-management-roles-bindings/add-role-binding-dialog.tsx b/src/renderer/components/+user-management-roles-bindings/add-role-binding-dialog.tsx
index 97e4f9d9e3..fde70e1290 100644
--- a/src/renderer/components/+user-management-roles-bindings/add-role-binding-dialog.tsx
+++ b/src/renderer/components/+user-management-roles-bindings/add-role-binding-dialog.tsx
@@ -80,7 +80,7 @@ export class AddRoleBindingDialog extends React.Component<Props> {
     ];
 
     this.isLoading = true;
-    await Promise.all(stores.map(store => store.loadContextNamespaces()));
+    await Promise.all(stores.map(store => store.loadAllFromContextNamespaces()));
     this.isLoading = false;
   }
 
diff --git a/src/renderer/components/+workloads-cronjobs/cronjob-details.tsx b/src/renderer/components/+workloads-cronjobs/cronjob-details.tsx
index c5c31ef3d2..6ac5e474b7 100644
--- a/src/renderer/components/+workloads-cronjobs/cronjob-details.tsx
+++ b/src/renderer/components/+workloads-cronjobs/cronjob-details.tsx
@@ -20,7 +20,7 @@ interface Props extends KubeObjectDetailsProps<CronJob> {
 @observer
 export class CronJobDetails extends React.Component<Props> {
   async componentDidMount() {
-    jobStore.loadContextNamespaces();
+    jobStore.loadAllFromContextNamespaces();
   }
 
   render() {
diff --git a/src/renderer/components/+workloads-daemonsets/daemonset-details.tsx b/src/renderer/components/+workloads-daemonsets/daemonset-details.tsx
index 4435f718ec..68f20e4b54 100644
--- a/src/renderer/components/+workloads-daemonsets/daemonset-details.tsx
+++ b/src/renderer/components/+workloads-daemonsets/daemonset-details.tsx
@@ -30,7 +30,7 @@ export class DaemonSetDetails extends React.Component<Props> {
   });
 
   componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   componentWillUnmount() {
diff --git a/src/renderer/components/+workloads-deployments/deployment-details.tsx b/src/renderer/components/+workloads-deployments/deployment-details.tsx
index 72f2013c9b..426d8f40c6 100644
--- a/src/renderer/components/+workloads-deployments/deployment-details.tsx
+++ b/src/renderer/components/+workloads-deployments/deployment-details.tsx
@@ -31,7 +31,7 @@ export class DeploymentDetails extends React.Component<Props> {
   });
 
   componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   componentWillUnmount() {
diff --git a/src/renderer/components/+workloads-jobs/job-details.tsx b/src/renderer/components/+workloads-jobs/job-details.tsx
index 1dce500fe6..21a4edd4e2 100644
--- a/src/renderer/components/+workloads-jobs/job-details.tsx
+++ b/src/renderer/components/+workloads-jobs/job-details.tsx
@@ -25,7 +25,7 @@ interface Props extends KubeObjectDetailsProps<Job> {
 @observer
 export class JobDetails extends React.Component<Props> {
   async componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   render() {
diff --git a/src/renderer/components/+workloads-overview/overview-statuses.tsx b/src/renderer/components/+workloads-overview/overview-statuses.tsx
index 33e5aa37c5..082f24db20 100644
--- a/src/renderer/components/+workloads-overview/overview-statuses.tsx
+++ b/src/renderer/components/+workloads-overview/overview-statuses.tsx
@@ -27,7 +27,7 @@ export class OverviewStatuses extends React.Component {
   @autobind()
   renderWorkload(resource: KubeResource): React.ReactElement {
     const store = workloadStores[resource];
-    const items = store.getAllByNs(namespaceStore.getContextNamespaces());
+    const items = store.getAllByNs(namespaceStore.contextNamespaces);
 
     return (
       <div className="workload" key={resource}>
diff --git a/src/renderer/components/+workloads-replicasets/replicaset-details.tsx b/src/renderer/components/+workloads-replicasets/replicaset-details.tsx
index 6b68ffa02d..c0a4ddc549 100644
--- a/src/renderer/components/+workloads-replicasets/replicaset-details.tsx
+++ b/src/renderer/components/+workloads-replicasets/replicaset-details.tsx
@@ -29,7 +29,7 @@ export class ReplicaSetDetails extends React.Component<Props> {
   });
 
   async componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   componentWillUnmount() {
diff --git a/src/renderer/components/+workloads-statefulsets/statefulset-details.tsx b/src/renderer/components/+workloads-statefulsets/statefulset-details.tsx
index 3088516114..c386f32503 100644
--- a/src/renderer/components/+workloads-statefulsets/statefulset-details.tsx
+++ b/src/renderer/components/+workloads-statefulsets/statefulset-details.tsx
@@ -30,7 +30,7 @@ export class StatefulSetDetails extends React.Component<Props> {
   });
 
   componentDidMount() {
-    podsStore.loadContextNamespaces();
+    podsStore.loadAllFromContextNamespaces();
   }
 
   componentWillUnmount() {
diff --git a/src/renderer/components/app.tsx b/src/renderer/components/app.tsx
index 2236b3d6be..8dd711e4ed 100755
--- a/src/renderer/components/app.tsx
+++ b/src/renderer/components/app.tsx
@@ -76,10 +76,9 @@ export class App extends React.Component {
     });
     whatInput.ask(); // Start to monitor user input device
 
-    await namespaceStore.whenReady;
     await kubeWatchApi.init({
-      getCluster: getHostedCluster,
-      getNamespaces: namespaceStore.getContextNamespaces,
+      getCluster: () => getHostedCluster(),
+      getNamespaces: () => namespaceStore.contextNamespaces,
     });
   }
 
diff --git a/src/renderer/components/dock/upgrade-chart.store.ts b/src/renderer/components/dock/upgrade-chart.store.ts
index f609420d9d..63468f3180 100644
--- a/src/renderer/components/dock/upgrade-chart.store.ts
+++ b/src/renderer/components/dock/upgrade-chart.store.ts
@@ -80,7 +80,7 @@ export class UpgradeChartStore extends DockTabStore<IChartUpgradeData> {
     const values = this.values.getData(tabId);
 
     await Promise.all([
-      !releaseStore.isLoaded && releaseStore.loadSelectedNamespaces(),
+      !releaseStore.isLoaded && releaseStore.loadFromContextNamespaces(),
       !values && this.loadValues(tabId)
     ]);
   }
diff --git a/src/renderer/components/item-object-list/item-list-layout.tsx b/src/renderer/components/item-object-list/item-list-layout.tsx
index ac0d2ea635..0db20c8777 100644
--- a/src/renderer/components/item-object-list/item-list-layout.tsx
+++ b/src/renderer/components/item-object-list/item-list-layout.tsx
@@ -138,7 +138,8 @@ export class ItemListLayout extends React.Component<ItemListLayoutProps> {
     const { store, dependentStores } = this.props;
     const stores = Array.from(new Set([store, ...dependentStores]));
 
-    stores.forEach(store => store.loadAll(namespaceStore.getContextNamespaces()));
+    // loads context namespaces by default (see also: `<NamespaceSelectFilter/>`)
+    stores.forEach(store => store.loadAll(namespaceStore.contextNamespaces));
   }
 
   private filterCallbacks: { [type: string]: ItemsFilter } = {
diff --git a/src/renderer/components/item-object-list/page-filters.store.ts b/src/renderer/components/item-object-list/page-filters.store.ts
index 8f5fa2c9eb..57651e6a26 100644
--- a/src/renderer/components/item-object-list/page-filters.store.ts
+++ b/src/renderer/components/item-object-list/page-filters.store.ts
@@ -27,10 +27,11 @@ export class PageFiltersStore {
     this.syncWithContextNamespace();
   }
 
+  // todo: refactor
   protected syncWithContextNamespace() {
     const disposers = [
       reaction(() => this.getValues(FilterType.NAMESPACE), filteredNs => {
-        if (filteredNs.length !== namespaceStore.getContextNamespaces().length) {
+        if (filteredNs.length !== namespaceStore.contextNamespaces.length) {
           namespaceStore.setContext(filteredNs);
         }
       }),
diff --git a/src/renderer/components/layout/sidebar.tsx b/src/renderer/components/layout/sidebar.tsx
index c3fc715a7c..de78609813 100644
--- a/src/renderer/components/layout/sidebar.tsx
+++ b/src/renderer/components/layout/sidebar.tsx
@@ -40,7 +40,7 @@ interface Props {
 @observer
 export class Sidebar extends React.Component<Props> {
   async componentDidMount() {
-    crdStore.loadContextNamespaces();
+    crdStore.loadAllFromContextNamespaces();
   }
 
   renderCustomResources() {
diff --git a/src/renderer/kube-object.store.ts b/src/renderer/kube-object.store.ts
index 6ecc8cd103..3eb4d0c147 100644
--- a/src/renderer/kube-object.store.ts
+++ b/src/renderer/kube-object.store.ts
@@ -20,6 +20,7 @@ export abstract class KubeObjectStore<T extends KubeObject = any> extends ItemSt
   abstract api: KubeApi<T>;
   public readonly limit?: number;
   public readonly bufferSize: number = 50000;
+  @observable.ref protected cluster: Cluster;
 
   constructor() {
     super();
@@ -29,29 +30,27 @@ export abstract class KubeObjectStore<T extends KubeObject = any> extends ItemSt
   // TODO: detach / remove circular dependency
   @observable.ref private namespaceStore: NamespaceStore;
 
-  private async resolveNamespaceStore(): Promise<NamespaceStore> {
+  protected async resolveNamespaceStore(): Promise<NamespaceStore> {
     const { namespaceStore } = await import("./components/+namespaces/namespace.store");
 
-    await namespaceStore.whenReady;
     this.namespaceStore = namespaceStore;
 
     return namespaceStore;
   }
 
-  // TODO: detach / inject dependency as in kube-watch-api
-  @observable.ref private cluster: Cluster;
-
-  private async resolveCluster(): Promise<Cluster> {
-    const { getHostedCluster } = await import("../common/cluster-store");
+  protected async resolveCluster(): Promise<Cluster> {
+    const { getHostedCluster, clusterStore } = await import("../common/cluster-store");
 
+    await clusterStore.whenLoaded;
     this.cluster = getHostedCluster();
+    await this.cluster.whenReady;
 
     return this.cluster;
   }
 
   // TODO: figure out how to transparently replace with this.items
   @computed get contextItems(): T[] {
-    const contextNamespaces = this.namespaceStore?.getContextNamespaces() ?? []; // not loaded
+    const contextNamespaces = this.namespaceStore?.contextNamespaces ?? []; // not loaded
 
     return this.items.filter((item: T) => !item.getNs() || contextNamespaces.includes(item.getId()));
   }
@@ -132,15 +131,15 @@ export abstract class KubeObjectStore<T extends KubeObject = any> extends ItemSt
   }
 
   @action
-  async loadAll(namespaces: string[] = [], { replace = false /*partial update*/ } = {}): Promise<void> {
+  async loadAll(namespaces?: string[], { replace = false /*partial update*/ } = {}): Promise<void> {
     this.isLoading = true;
 
     try {
       // load all available namespaces by default
-      if (!namespaces.length) {
+      if (!namespaces?.length) {
         const namespaceStore = await this.resolveNamespaceStore();
 
-        namespaces = namespaceStore.getContextNamespaces();
+        namespaces = namespaceStore.allowedNamespaces; // load all by default if list not provided
       }
 
       const items = await this.loadItems({ namespaces, api: this.api });
@@ -177,8 +176,8 @@ export abstract class KubeObjectStore<T extends KubeObject = any> extends ItemSt
     return items;
   }
 
-  async loadContextNamespaces(): Promise<void> {
-    return this.loadAll(this.namespaceStore?.getContextNamespaces());
+  async loadAllFromContextNamespaces(): Promise<void> {
+    return this.loadAll(this.namespaceStore?.contextNamespaces);
   }
 
   protected resetOnError(error: any) {