I've put several overlays in the map.The textures are signages, the squares indicating cube dropper, putting the cube on the button etc.. These signages all showed up correctly on my PC, but when I checked a playthru of a player, I found that the signages are all blank squares, with a little weird reflection. How to make these signages show up correctly on any PC?
Other overlays like the posts work good.

What's the material names? Did you apply them via overlay, or directly as the brush texture? If the name has "world" in it, it's for applying to the brush. "Overlay" indicates it should be an overlay.
If textures show up solid white, it usually indicates the vtf is missing.

Are those custom textures, or have you checked if the overlays you're using are into custom folders?

TeamSpen210 wrote:
What's the material names? Did you apply them via overlay, or directly as the brush texture? If the name has "world" in it, it's for applying to the brush. "Overlay" indicates it should be an overlay.
If textures show up solid white, it usually indicates the vtf is missing.

maybe I apply world texture on overlays let me check

josepezdj wrote:
Are those custom textures, or have you checked if the overlays you're using are into custom folders?

its not custom .