Im getting a similar problem here: https://developer.apple.com/forums/thread/770545 I have tried everything. Changed all the app icons, setting CFBundlePrimaryIcon in the plist. NO idea what to do.

Human error. The DevOps build configuration in the pipeline was targeting macOS 13…, looks like the build may have ignored the "Any Appearance" and "Tinted" asset types, as they were either not recognised or not properly handled for that platform. As a result, the Dark Mode image was used as a fallback.