I have problem with a scene. Doing an underwater scene for a client. I made some proof of concept test some weeks ago. With faking caustics using a texture map to project them and scattering medium for some rays. It looked okay and rendered fine.
Yesterday I want to start the job and the scene just rendered samples 1..2..3..4..5..1..2 it resets after a few samples.
Now with today's version it rendered but almost black, no rays and no projector map.