TLDR: It was on my end 🤦🏻‍♂️😂 Just wanted to provide an update for anyone following this thread. After reviewing my setup, I discovered that the Game Center capability had only been enabled for the Debug build configuration in Xcode and not for Release. That explains why my development builds worked perfectly while the App Store version didn’t seem to register the entitlement. I’ve since corrected this by enabling Game Center for the Release target and submitted a new build (v1.0.2) with the proper config. It’s currently in review, so I’ll confirm once the update is approved and the leaderboards propagate correctly. Sharing this in case anyone else runs into a similar situation. It’s an easy detail to overlook when Game Center works fine during local testing but fails silently once deployed.

Resolved