I had a big file I created in blender that was 1 million plus vertices. It was originally an OBJ with an MTL for texture. I exported to FBX and UEFN froze every time I tried to import it. Curiously, I exported the same file from blender as an STL, used an online converter to change it to FBX, and it imported to UEFN just fine! The problem is that I cannot import this file with a texture for some reason. It would be fine if I could convert the MTL file to a PNG to place onto the textureless FBX file I converted, but I do not think that this is possible. What could be causing UEFN to crash when importing an FBX that size with a texture??? Is it possible to create a PNG file from an MTL???