In Rhino modeling, everything looks fine, but when exporting to D5 rendering, I get black lines and the geometry breaks apart like in the picture. I’ve had this issue before, and back then, inserting a script fixed it — but this time, it’s not solving the problem. What could possibly be causing this? My graphics card settings are all correctly configured too…
I’ve seen similar crashes when the GPU gets overloaded. Have you tried turning off ‘D5 SR’ (Super Resolution) or ‘FPS Booster’ in the settings? Sometimes those can cause the render to hang or crash right at the end.

