I have issues with my iOS simulator not starting by default when I opened it the previous time. But now it just stops working like the mac is frozen. And this the M1 MacBook. I also reinstalled Xcode but nothing really solves the issue, The Simulator is broken after MacOS 11.3.1 Update.
I think I have the same issue, and some folks here do to:
https://developer.apple.com/forums/thread/679098?page=1
It appears that on macOS 11.3 and 11.3.1 dyld and app launch is incredibly slower for simulators while a debugger is attached. In my case I'm able to get the app to eventually launch (4-5 minutes), but once it does the debugger immediately disconnects with IDEDebugSessionErrorDomain, Code 4. I'm going to file a Radar, I recommend you do also.
https://developer.apple.com/forums/thread/679098?page=1
It appears that on macOS 11.3 and 11.3.1 dyld and app launch is incredibly slower for simulators while a debugger is attached. In my case I'm able to get the app to eventually launch (4-5 minutes), but once it does the debugger immediately disconnects with IDEDebugSessionErrorDomain, Code 4. I'm going to file a Radar, I recommend you do also.
