Hi Hentai Protagonist. That's a rather odd bug you got there. As it only appears to affect the 3D portion of the game. You can try switching the rendering engine to OpenGL, to do so create a shortcut to the game exe and add the following flag:
--rendering-driver opengl3
in the target field just after the .exe and outside the quotes if any.
I think i'll just wait till this game is actually stable.