Thanks, trying not to have to rebuild the level with the stuff falling through floor. I started the the project and then upgraded to 1.16 now I am on 1.17 and I have learned not to change versions in the middle!
The colors are strange though, It only happens when I shoot the boxes and then after a few seconds it goes back to normal. I just can't figure out where those colors could even come from! It's like a heat signature, so I don't think its effects or shaders or textures...but what? I will try removing dynamic boxes and then put some back and see.
Actually, it could be useful if I could use it to make thermal goggles.

FPS Creator 1.17