If multiple instances of the app are open, and app is killed from Task manager, last instacne becomes blank

1- Access the app
2- Open 2 instaces of the app
3- Go to task manager
4- Kill on thread
5 -Observer the issue

Actual Result:

If multiple instances of the app are open, and app is killed from Task manager, last instance becomes blank

Expected Result:

App should be killed properly

SS/Video:

https://drive.google.com/file/d/1nEHV3_Y54WAJZy9uo1PLlad12obBIf_O