I am having the same issue on official iOS 14 & when used xcode 12. Plz reply if someone finds the root cause/work around or if Apple fixes it.

I have the same issue on iOS 14.1 too on couple of devices. I tested on iPhone11, iPhone 12 etc. This happens very first time of the launch and when pushed again everything looks ok. Has anyone solved this or did Apple make a note of it?