CardDAV to Android Contacts but View only there?

Hello, I set up Helm Sync some time ago and I’ve just recently noticed that my contacts are only shown as “View only” in the native Android 11 Contacts app. I can’t edit them there but they do sync over to the phone as expected. I have no trouble syncing to macOS or my edits there syncing back to the Helm server.

Why does the native Android 11 Contacts app show my contacts, synced via Helm Sync, as View only? How can I enable the ability to edit my contacts in the native Android 11 Contacts app like I can on macOS? I see nothing obviously wrong inside the Helm Sync settings.

Thank you for any suggestions.