hornet3d posted at 7:53PM Sat, 13 February 2021 - #4412605

ghostship2 posted at 6:53AM Fri, 12 February 2021 - #4412565

Maybe this is the same problem as the infinite lights sometimes not rendering and then the next render they work again.

OK that explains why I can get a very dark render on occasions but if stopped and the render stated again with no changes the render has the expected brightness. I guess it happens about one in twenty renders but I never manged to pin point as far as the infinite lights not rendering.

Yes, same here. I sometimes moved the camera and the lights worked again. I thought it was a problem with the way the program was handling bounce lighting or transparency as I only ever noticed it on indoors scenes. Good to hear your take on it.