I am loading a project for school. I'm sure it was created in an older version of Maya. I have been trying to add lights to the scene, but Arnold does not like that and crashes. I can get 2 lights loaded, but on the third, it crashes every time. I cannot complete my assignment. Arnold also crashes randomly due to updating the render window when anything is changed in the scene, or if the camera is adjusted. Please help. I have tried reducing the threads in Arnold, Uninstalling/Reinstalling Maya, and exporting then re-importing as FBX (Maya will only load the lights, not the characters or scene). How do I stop Arnold from crashing every time?