I have an app and when I choose to run it on the device (an iPad pro) from Xcode, it just sits and the LaunchScreen.storyboard for 30-45 seconds. Eventually and message pops up in the console that says:
Metal API Validation Enabled and it works normally. Other people are having this issue. Any thoughts from the world of smart people:
It's documented here too: https://developer.apple.com/forums/thread/661008
Thank you.
Turns out there are a lot of people with this issue. By following the suggestions in these articles I got it down from 80 seconds to about 8-10. While not good, it's way better.
Cheers.
https://developer.apple.com/forums/thread/651012 Slow app launch time after updating to iOS 14 and Xcode 12 https://developer.apple.com/forums/thread/123068?answerId=420683022#420683022 https://developer.apple.com/forums/thread/651012