After playing for a while in the early access on my ps3 I've been seeing my screen randomly go black while questing. Generally I still see the names of npcs and other players as well as my hotbar and map. To fix the problem I have to either navigate to portal, teleport to a diferent location, or start up a cut scene. It has happened during random quest usually though I have noticed it a bit more in dungeon like settings such as tam tara and the the first dungeon main story quest in lima.