Were you able to resolve it?

We too noticed the issue. If we select to share, it stucks at "Shared to Facebook" with a black background. Only option is to QUIT the app. Also the same behaviour is actually observed with Facebook app too when we try to share content from facebook to facebook.

Did you find any solution?

Do we need to export with App Thinning and Bitcode to test it locally for simulating App store review team environment?Thanks for the info btw!