Dear guys....
I have a model of 79 MB, 3 scenes in it, out of wich 2 of them are rendering fine and in under 20 min. The third one and only that particular one is taking ages to prepass and eventually crash showing runtime error. Also I have notices that light cache never builds up to 100%, it goes down to 0% after building about 80%.
After a million tries I'm facing another problem... That is, sketchup is crashing after finishing every render giving me no time to save...
If there is any one who can give suggestions, I would be glad...