Hey, I just started using the trial of Marmoset to see if it was worth getting a license for. I really love the results as well as the controls you get in the program but on my first test i'm getting these weird errors in my mesh on the right sleeve. I had a suggestion to recalculate normals but I tried that and it didn't…
He posted a picture... I've had this exact error before. It's not the exporter or importer, because I've tried both FBX and OBJ using all sorts of settings with no success. It has to be something with the model itself. I'm not sure exactly what causes it, but for me it was only fixed by recreating those polys.
I fixed it. It was an issue with my normals. I was on the right track just using the wrong procedure and after unwrapping a new UV it cleared up all the issues.