I also don't get any live issues. I think the problem appeared after the last Xcode Update (going to 14.3.1).
I'm working on a M2 Mac mini (also using Swift UIKit), had no problems in the past and then suddenly live issues stopped working.
It is super annoying but I found out that this problem only appears when I have an actual device or the 'Any iOS Device (arm64)' as run destination selected.
-> When I select 'Any iOS Simulator Device (arm64, x86_64)' everything works fine.
I hope it gets fixed with the next update, as it is still annoying to switch between the run destination all the time.