Create a Mac App Store provisioning profile Create a new macOS app in App Store Connect and select your new bundle identifier Open your project in Unreal In your project settings, go to Platforms > iOS, and set your Bundle Identifier Now that that's done, we need to set this new (old) Xcode as the default Xcode on your Mac using the xcodeselect command in the Terminal This has to be done because the Unreal Build Tool uses whatever Xcode is set as the default when compiling code, generating project files, etcI have had a consistent bug since macOS Developer beta 9, and continuing with beta 10 First it happened with Myst from the GOGcom store, version 153, which is an Unreal Engine 426 title, and Apple Silicon native
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