I use headus also and noticed this awhile back. The problem seems to be headus changing the order of the referencing groups when importing/exporting the obj from max to headus. g Box01f 1/1 3/2 4/3 2/4f 5/5 6/6 8/7 7/8f 1/9 2/10 6/11 5/12f 2/13 4/14 8/15 6/16f 4/17 3/18 7/19 8/20f 3/21 1/22 5/23 7/24 g Box02f 4/3 2/4 1/1…