The game resolution is locked to 1920x1080, so that might be causing the issue. I'll try and see if I can do something about it
Viewing post in Nitori's Genbu Reconstruction Plan comments
It might not be properly locked. The base resolution set in your OS determines how borked it looks once you click New Game. If you try and run it in 4k, the HUD stays 1080p and occupies the top left quarter of the screen. Except the top bar - that occupies only the top left quarter of the grey area that's meant to *hold* the top bar. So it seems whatever you did to lock the game to 1080p didn't quite work out. Though it seems the engine has no problem scaling to other resolutions, as long as everything's configured properly. The intro video and main menu properly stretch and squeeze from the base 1920x1080 to fit the monitor base resolution. I tested both 4k and 720p. Everything looks great until you hit New Game.