Thanks for playing and pointing this out.
1. Wrong drawing
I have the image that Unreal Engine games have a heavy drawing load, so I tried to lighten the load by reducing the image quality settings, which may have had the opposite effect.
I'll consider the image quality settings, plane reflection actors, etc.
2. Few interactive elements
I agree, I wanted to add more playability to the game during the jam.
So, I'll add more play and endings in the version upgrade.