I made a development build and resigned it and uploaded to testflight. it works fine till iphone x but crashes on iphone xs, xr ,xs max
anyway i proceeded for review… apple responded with this error
Guideline 2.5.1 - Performance - Software Requirements
Your app uses or references the following non-public APIs:
MetalTools.framework, MTLDebugDevice
The use of non-public APIs is not permitted on the App Store because it can lead to a poor user experience should these APIs change.
Continuing to use or conceal non-public APIs in future submissions of this app may result in the termination of your Apple Developer account, as well as removal of all associated apps from the App Store.
Now i am going try with shipping but distribution disabled and resign it