Angular 16: Strange Behavior with NgIf and Async Pipe in Nested Components
I'm maintaining legacy code that After trying multiple solutions online, I still can't figure this out. I'm experiencing an issue with `NgIf` and the `async` pipe when using them in nested components in Angular 16. The main component fetches data asynchronously and passes it down to a child component. However, when the data updates, the child component doesn't seem to reflect the new values unless I manually trigger change detection. I've tried various methods to force change detection but none of them have worked. In my main component, I have the following code: ```typescript import { Component, OnInit } from '@angular/core'; import { DataService } from './data.service'; import { Observable } from 'rxjs'; @Component({ selector: 'app-main', template: ` <div *ngIf="data$ | async as data"> <app-child [data]="data"></app-child> </div> ` }) export class MainComponent implements OnInit { data$: Observable<any>; constructor(private dataService: DataService) {} ngOnInit(): void { this.data$ = this.dataService.fetchData(); } } ``` And in my child component, I have this code: ```typescript import { Component, Input } from '@angular/core'; @Component({ selector: 'app-child', template: ` <div *ngIf="data"> <p>{{ data.name }}</p> </div> ` }) export class ChildComponent { @Input() data: any; } ``` The issue I'm facing is that when `data` changes in the main component, the child component doesn't update the displayed name unless I add a `ChangeDetectorRef` and call `markForCheck()` or `detectChanges()` manually. I've also looked into using `OnPush` change detection strategy but it doesn't seem to resolve the issue either. Is there something I'm missing regarding how `NgIf` and the `async` pipe interact with the change detection cycle in Angular? Any help would be greatly appreciated! For context: I'm using Typescript on Linux. Any ideas what could be causing this? This is part of a larger application I'm building. I'd really appreciate any guidance on this. For context: I'm using Typescript on Windows 11. What am I doing wrong?