So here is what I did
Import OBJ > 10 mil polys > Ok Scatach that proxy. It don't even work as simple imported mesh... > assign forest pack pro UV and/or XY mode > Render.
When I do test render with
few instances say distribution set to 20, it all works - nvm still breaks. but when I want to populate 15 mil proxies(distribution of 1 or something like that) over it I get > attachments:
He will process all those errors and render image but processing can take hours...