I think there might be a problem with the Mobius Spiral Shader? I am using ver 2020.34 and I used the Mobius Spiral in a sequence (I don't remember which version I was using when I added that effect.) But now if I try to add that shader, I get the "RSOD" (similar to BSOD! LOL) The existing shader works, but if I try to add a new Mobius Shader, it doesn't work. I deleted the shader and re-downloaded, I rendered all, same results. Another oddity with that shader is that if you hover over the Shader File selection box, the item details do not show up, where the other shaders do. The Mobius Spiral.json file does not appear to have the correct information, it only has "Shader not found."