It has happened something similar, but in my case is when I script a "spawn_army" code wrong [okay not wrong, but in this mod you have to do like 5 more steps to not make it glitched, if not it will make the spawned army do the spinning arm and head]. Maybe it has something to do with that, or something like a not considered situation. Right now i have not time to check it. Maybe later.
I explained [in like three wall text] how to use the spawn army code in this mod in this thread 6° post:
http://www.twcenter.net/forums/showt...1#post13611248
EDIT:
I have not see the code yet, but I think it may be something like this:
Missing the things in red would make duplicates and nameless mirrors that may cause crash. missing the green one would leave a mirror of a misterious unused faction or certanly crash. Not spawning a extra unit with the mirror in the blue one causes glitched portrait. Trying to spawn any army without the blue one would make the exact glithed rotating head and arms, but i suspect it it caused by another thing. Maybe it is the fault of the purple one because these kind of commands needs the name of the character/general, and this with when repositioning maybe confuses the game and cannot locate the Mirror to take out of the campaign map with the command send_characteroffmap. Just a theory, but I´m not expert of scripting or anything, it is just my experience and my memory. BTW I wrote the command by memory, so they may be or are misspelled.