Reproduction

Use StackBlitz to reproduce your issue:

• Components: https://stackblitz.com/edit/angular-wgkr2a

Steps to reproduce:

1. setting"ngZoneRunCoalescing" to "true" in the main.ts

platformBrowserDynamic()
  .bootstrapModule(AppModule, { ngZoneRunCoalescing: true })
  .catch(err => console.error(err));

2. open any CDK overlay or any angular-material component which uses them (mat-select, mat-bottom-sheet..)

Expected Behavior

• the overlay should open at the right position
  

Actual Behavior

• overlay opens at top left
  

Environment

• Angular: 11.1.0
• CDK/Material: 11.1.0
• Browser(s): chrome
• Operating System (e.g. Windows, macOS, Ubuntu):