I'm seeing the same behavior on Big Sur but the Catalina build is working for me.

I am seeing the same behavior.

I was able to get it to work when I logged in to a test account created in Connect. It didn't work when using my real id. Also, you may need to do this:   #if targetEnvironment(macCatalyst)     if !FileManager.default.fileExists(atPath:Bundle.main.appStoreReceiptURL.path) {         exit(173);     } #endif I remember it was necessary to force a mac app to download a receipt from the store. Once the receipt is downloaded, the app will restart. Best, jaime