Xcode 26 fails to load SPM packages

For me it looks like Xcode 26 has problems reading SPM packages from a locally hosted BitBucket git solution.

While Xcode 16 work perfectly fine, Xcode 26 fails to load and gives "Server SSH Fingerprint Failed to Verify" as error description. Cleaning build data and DerivedData sometimes makes loading work. Any change in Package dependencies will break it again.

Anyone having same problems? How do you handle it?

Xcode 26 fails to load SPM packages
 
 
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