Catalyst: Cannot submit/validate app with App Groups

I'm testing the submission/validation process for my Catalyst app, and I keep getting an App Store Connect error saying I have invalid code signing entitlements because my App Group does not start with my team ID. Mac apps are supposed to prefix their App Groups with the team ID, but iOS apps are prefixed with just the word "group". And there's no way to manually change an iOS app group to start with a team ID (at least not that I can find).


Has anyone found a workaround for this? Or am I just not able to use App Groups in a Catalyst app?


(Note that I am using manual code signing because I need to submit the app for an existing app ID, so perhaps this isn't an issue for automatic signing.)