Another instance of Messenger is already running. You cannot run two instances of Messenger. Please quit the other instance and try again.

[hockey_thekid]

This happens every time I open the app, close it, and then reopen it. I am using Windows 11.
When the error appears, I go to the Task Manager and end the task. This seems to work, but if I open the app again, close it, and then reopen it, the same error occurs.
I tried reinstalling the app, but the problem persists.

 

[berryberry]

sameproblem huhuhuhuu