My overlays keep going blank on me in the editor and its extremely time consuming to go and have to replace all of them. Is there anyway to make them reappear. The little blue box is still there and when I ALT ENTER you can see what texture is selected for it. What is happening here??
Yeah they would appear for a while and the suddenly the preview would be gone but the box was still there. No they don't appear in game if this happens.
Problem has been solved if this happens to you.
Go to the overlays entity properties, there should be a parameter called "Brush faces". Slightly to the right will be a small box click it should say brush face or something like that. A small eye dropper will show as your cursor go to your 3D view of you map click on the wall/face you want your overlay to appear on now apply and it will reappear. What causes this is when you have a wall with a overlay on it already and say you clip in anyway shape or form it will cause the overlay to disappear because you basically made a new brush and the overlay don't know which one to appear on anymore.