diff --git a/npm/ng-packs/packages/core/src/lib/directives/permission.directive.ts b/npm/ng-packs/packages/core/src/lib/directives/permission.directive.ts
index b12782288d..d9ad09c780 100644
--- a/npm/ng-packs/packages/core/src/lib/directives/permission.directive.ts
+++ b/npm/ng-packs/packages/core/src/lib/directives/permission.directive.ts
@@ -52,7 +52,9 @@ export class PermissionDirective implements OnDestroy, OnChanges, AfterViewInit
           if (!this.rendered) {
             this.cdrSubject.next();
           } else {
-            this.cdRef.detectChanges();
+            // Defer via queue — sync detectChanges during ApplicationRef.tick
+            // (e.g. post-login permission/config refresh) can contribute to NG0101.
+            this.queue.add(() => this.cdRef.detectChanges());
           }
         } else {
           this.cdRef.markForCheck();
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.html b/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.html
index b23fdc598e..1eabd84821 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.html
+++ b/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.html
@@ -1 +1 @@
-<abp-breadcrumb-items [items]="segments"></abp-breadcrumb-items>
+<abp-breadcrumb-items [items]="segments()" />
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.ts b/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.ts
index b8a86342b1..884eb9db99 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/components/breadcrumb/breadcrumb.component.ts
@@ -6,7 +6,7 @@ import {
   SubscriptionService,
   TreeNode,
 } from '@abp/ng.core';
-import { ChangeDetectionStrategy, ChangeDetectorRef, Component, OnInit, inject } from '@angular/core';
+import { ChangeDetectionStrategy, Component, OnInit, inject, signal } from '@angular/core';
 import { Router } from '@angular/router';
 import { map, startWith } from 'rxjs/operators';
 import { eThemeSharedRouteNames } from '../../enums/route-names';
@@ -20,14 +20,13 @@ import { BreadcrumbItemsComponent } from '../breadcrumb-items/breadcrumb-items.c
   imports: [BreadcrumbItemsComponent],
 })
 export class BreadcrumbComponent implements OnInit {
-  readonly cdRef = inject(ChangeDetectorRef);
   private router = inject(Router);
   private routes = inject(RoutesService);
   private subscription = inject(SubscriptionService);
   private routerEvents = inject(RouterEvents);
   private routeCultureUrl = inject(RouteBasedCultureUrlService);
 
-  segments: Partial<ABP.Route>[] = [];
+  readonly segments = signal<Partial<ABP.Route>[]>([]);
 
   ngOnInit(): void {
     this.subscription.addOne(
@@ -38,18 +37,18 @@ export class BreadcrumbComponent implements OnInit {
         ),
       ),
       route => {
-        this.segments = [];
+        const next: Partial<ABP.Route>[] = [];
         if (route) {
           let node = { parent: route } as TreeNode<ABP.Route>;
 
           while (node.parent) {
             node = node.parent;
             const { parent, children, isLeaf, ...segment } = node;
-            if (!isAdministration(segment)) this.segments.unshift(segment);
+            if (!isAdministration(segment)) next.unshift(segment);
           }
-
-          this.cdRef.detectChanges();
         }
+
+        this.segments.set(next);
       },
     );
   }
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts b/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
index b6db6e7716..f1f3a5c114 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/services/toaster.service.ts
@@ -1,4 +1,4 @@
-import { ApplicationRef, ComponentRef, inject, Injectable } from '@angular/core';
+import { ComponentRef, inject, Injectable } from '@angular/core';
 import {
   ContentProjectionService,
   LocalizationParam,
@@ -12,7 +12,6 @@ import { Toaster } from '../models';
   providedIn: 'root',
 })
 export class ToasterService implements ToasterContract {
-  private readonly appRef = inject(ApplicationRef);
   private readonly contentProjectionService = inject(ContentProjectionService);
 
   private lastId = -1;
@@ -37,8 +36,9 @@ export class ToasterService implements ToasterContract {
     }
 
     this.containerComponentRef.instance.setToasts(this.toasts);
+    // Only refresh the projected toast host. Calling ApplicationRef.tick() here
+    // races with zone-driven CD and throws NG0101 (recursive tick).
     this.containerComponentRef.changeDetectorRef.detectChanges();
-    this.appRef.tick();
   }
 
   /**
diff --git a/npm/ng-packs/packages/theme-shared/src/lib/tests/breadcrumb.component.spec.ts b/npm/ng-packs/packages/theme-shared/src/lib/tests/breadcrumb.component.spec.ts
index 6ad217d3b8..ce1463e2cf 100644
--- a/npm/ng-packs/packages/theme-shared/src/lib/tests/breadcrumb.component.spec.ts
+++ b/npm/ng-packs/packages/theme-shared/src/lib/tests/breadcrumb.component.spec.ts
@@ -135,7 +135,7 @@ describe('BreadcrumbComponent', () => {
     const breadcrumb = spectator.fixture.debugElement.query(By.directive(BreadcrumbComponent))
       .componentInstance as BreadcrumbComponent;
 
-    expect(breadcrumb.segments.map(segment => segment.path)).toEqual([
+    expect(breadcrumb.segments().map(segment => segment.path)).toEqual([
       '/identity',
       '/identity/users',
     ]);