Check out DefaultGame.ini, you’ll find a often ignored feature dealing with game mode aliasing.
I couldn’t figure this out either. This appears to be a limitation of the engine, thats why I added those bad movement and look buttons. If you find a way to use virtual thumbsticks as well as UMG buttons, I’d absolutely love to hear it. I tried everything I could with z order as well, not sure what it could be. Would love to replace those bad buttons.