I have a sdk which reads and writes data to keychain everything works fine on local machine. But on testflight it can not read the data it previously wrote. every time app starts it tries to read but fails. I have other apps they works fine with the same sdk and same code on testflight and local. There is keychain access groups in entitlement file. the reason is not entitlement file. Any ideas?

We are having trouble with the build times of xcode 16. Any solutions when will it be fix? Does anyone having the same issue. (I am using M2 Pro)