> Quote - But I noticed that Poser adds ":1 & :2" to these to the 'usemtl' sections in the new objects you're making with a Poser OBJ export. > > Is there any way to avoid this?

The ":#" are because you have used "Use exact internal names except spaces" in the export options. Don't use that option, it serves no useful purpose in Poser, neither do the other options in the red box .