Flashing Map In-Game

My map was working okay with it on fullbright as I hadn't put in any lights. I then placed a light in my map and compiled.

Then when I went in game the map keeps flashing, it looks like lightning but what it actually is is that everything except entities keep flashing, so all the walls disappear and come back.

Any ideas on why this is and how to fix this?

I found out what was causing it... the map works fine with mp_flashlight 0, but as soon as I change it to mp_flashlight 1 it starts flashing.

:smile: