Substance 3D Stager is unusable

I have a brand new Mac Mini Pro with 16gb Ram and 500gb hard drive and I am using a trial version of the latest Substance Stage (I have the rest of CC). I have created a scene with a wine bottle with two spotlights, but 3 point lights. I managed to render a few times but then the lighting started glitching. I would hide a light but it was hiding the wrong one. Now if I had a new spotlight it shows in viewport but is non existent in ray tracing. This programme is unusable!