black screen when path tracing is on

Hello. Could please anyone advice me on what can I do to make path tracing work? I have a black screen when path tracing is enabled (it works fine on smaller objects).

My rhino model file has around 2gb size after meshing. It is complex in terms of being made out of smaller elements. I have rtx 4080super i712700K processor and 64gb ram ddr4 and I have the black screen issue.

Everything renders fine in my old vray 5 for rhino, but I need to add a lot of plants and render short animation. Twinmotion should be perfect for that and I need to test it. If it will work it will make sens to buy a licence for comertial projects. I tried to optimize the model and tested it by making rhino file size smaller (I went down to 1gb in one test) and it still does not work neither on twinmotion 2023.2.4 EDU or twinmotion 2024.1 Preview. What can be the case?

Please help me to solve this. How would you recomend to deal with this problem?

HI, can you see your model without PT ?. if so, have you tried to adjust the exposure under camera settings ?.