Picking bones

I have no idea what ‘memory leak’ is, but I saw it mentioned in another thread I found when I went searching for answers regarding an in-game glitch I keep having. (texture)

The issue I’ve had, has been that at random times all of a sudden I will lose the texture of an object, in-game asset, etc etc and it will turn into multi-colored pixels. Doesn’t happen in any other game. Thought maybe my GPU was dying, but I have no problems anywhere else with this issue, no other games, no other anything. Just WoW. Ended up reverting back to DX11 per the thread ^ and that seems to have fixed the issue.