UIBackgroundModes was already configured in info.plist: Entitlement provisioning is not an LLM hallucination it's part of the error message: Automatic signing failed Xcode failed to provision this target. Please file a bug report at https://feedbackassistant.apple.com and include the Update Signing report from the Report navigator. Provisioning profile "iOS Team Provisioning Profile: [app id]" doesn't include the com.apple.developer.location.always and com.apple.developer.location.background entitlements. As far as I understand there should be a capability for background modes in the App ID Configuration.

Thank you for your detailed response! The issue was indeed caused by a redundant backup location entry in the entitlement file. After removing it and keeping the definition only in the info.plist, everything worked.