Need help with problem to tile uv of global post proc material texture

Its a bit hard to see from that screenshot. You’d be better off plugging the TexCoord node directly into the output for debugging.

However my guess is that it is a know issue with the editor viewport resizing and how the UV’s are reported. I bet it looks fine in the HMD.

Edit* Looking at the image again it looks like a clamping issue, check the properties of the scenetexture node.