Texture loading errors.
Once the game starts, there are no issues with the textures. However, as time goes on (between 20 and 25 minutes of gameplay), without any glitches or screen flashes, the textures simply bug, and if the game doesn't close, things get worse.
Texture bugs tend to be different all the time; sometimes they get mixed up between items, the text looks strange, or the colors are off, just like in the photo.
Are there any corrupted files in your textures folder?