works with Xcode Beta 8 thank you

The same error still exists in Xcode 14.3 RC

The same error exists in Xcode 14.3 Beta 3

This is the output: Identifier=com.teamviewer.remoteaudiodriver Format=bundle with Mach-O thin (x86_64) CodeDirectory v=20400 size=996 flags=0x0(none) hashes=24+3 location=embedded Hash type=sha256 size=32 CandidateCDHash sha256=d83384726d17e69c79a535ccc8d9e85c1d03d9b8 CandidateCDHashFull sha256=d83384726d17e69c79a535ccc8d9e85c1d03d9b882f95b4f6b65462a1a69725a Hash choices=sha256 CMSDigest=d83384726d17e69c79a535ccc8d9e85c1d03d9b882f95b4f6b65462a1a69725a CMSDigestType=2 CDHash=d83384726d17e69c79a535ccc8d9e85c1d03d9b8 Signature size=9101 Authority=Apple Development: schmitt@teamviewer.com (G76JWMDJNT) Authority=Apple Worldwide Developer Relations Certification Authority Authority=Apple Root CA Timestamp=24. Mar 2021 at 00:40:32 Info.plist entries=22 TeamIdentifier=LM497G94SC Sealed Resources version=2 rules=13 files=2 Internal requirements count=1 size=204

This is the SampleCode https://developer.apple.com/documentation/coreaudio/creating_an_audio_server_driver_plug-in which I used to start our project

Thanks for you help Quinn

Finally I found my issue! It was not on signing issues at all. In release builds I generally set GCC_SYMBOLS_PRIVATE_EXTERN = NO But I forgot to flag all the exported functions with __attribute__((visibility("default")))