Xcode 16.3 - very slow to run on simulator

Build and run on simulator is suddenly very slow since Xcode 16.3. The build is normal, but the run part launches the simulator and sits and waits 5, 10, 15, sometimes 20 seconds before anything happens. During that time, the screen is blank on the simulator and the console output is blank in Xcode.

What's going on here?

Is there a fix or work-around?

EDIT: If I turn off the debugger, so it just runs without attaching it, the launch happens instantly.

Same here on M1 Max

Tested with an app in Debug mode. No issue here.

Does you app use libraries ? Does it occur after rebooting and rebuilding the app ?

Did anyone find a solution to this? I have been getting it for a while and it's very annoying.

Xcode 16.3 - very slow to run on simulator
 
 
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