Did u turn off reduce motion via phone settings? If you’re not using reduced motion, then turn off the cross transition fading. Did a google search as I was curious and apparently this is an issue for many ppl. It’s iOS related issue so someone suggested this method and it worked. Can try ~~
Meaning either u turn off reduce motion, or u turn on reduced motion but off the cross transition fading below it.
Omg I think you just managed to resolve my issue!!! Hahaha I didn't know it was that setting that caused this