"When Maya starts lagging or tools/manipulators start acting strange, the best place to start troubleshooting is to reset the preferences to default - this will clear out any corrupted elements that are causing hangups in Maya itself." From :…
Check this link out: https://forums.autodesk.com/t5/maya-modeling/error-hikcharactercontrolsui-mel-line-329/td-p/7101141 Seems like a likely solution for you as well. I don't know MEL (maya's scripting language), but this error code has something to do with humanIK, which is a rigging thing inside maya. Totally unrelated…
Hey @BIGTIMEMASTER , thanks for your answer ! I always try to find a solution by myself before coming to polycount. I did type that error into google and I obtained a few solutions, which I've tried, and they did not work (I was still getting the same error line and it was still impossible for me to have my door model back…
So by the the name of the missing script, I doubt you would have any human ik scripts needed to import a prop obj. Try to import the file from 3d coat into a new Maya scene. Also check out the outliner to see what nodes are or aren't imported.