Rarely the lighting engine in our game Ultimate Mining Tycoon will crash on the client - players can still play, but all dynamic lighting features will be disabled. The lighting is restored after a few minutes, or after the user turns their graphics to minimum and back. We have not been able to establish a clear cause or pattern beyond it seemingly being more likely in a large mine, and has persisted across different versions of the game with server-side and client-side terrain for the mine.
We do not knowingly use a large number of light sources, each character has two, and vehicles have 1-4, with one vehicle max per player, and a small fixed number of static environmental lights. We have done a sweep for memory leaks and fixed what we could find.
Example of the crashed lighting engine, the spotlights in the player and vehicle are not visible.
The issue still occurs, I’ll put a request out for our team to get a log next time this happens to one of us. As it is an infrequent and seemingly random bug, I’m not sure when this will be!
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