bug visionOS and the storyboard key in the plist?

I have an older app that is a mix of Swift & Objective-C. I have 2 groups of storyboards for the iPhone and the iPad using storyboard references.

There seems to be a bug, when using the Simulator, it is loading the storyboard specified by the key "Main storyboard file base name" and not using the key "Main storyboard file base name (iPad)". I did change the first key to use the iPad storyboard & it then worked as expected in the visionOS simulator.

The raw keys are:

UIMainStoryboardFile UIMainStoryboardFile~ipad

What should I do?