Maybe it can help someone:
I found libswift_Concurrency.dylib in the Frameworks directory of my package which is unexpected (my project is ios Only) . I remove it from the archive and I can now process an ad hoc distribution.
I have not uploaded it to appstoreconnect
SebastienMahe
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Disabling Bitcode works but next my appclip binary was too large. It's not an optimal and suitable solution for long term