You encounter problems in battle model? Something like the file "sacg" mysteriously diappears from the lgp file? That was the right hand of Sephiroth. Sometimes it happens when compressing and when i play that lgp sephiroth has got no right hand O.O. You just need to take back that file inside the archive and compact again, leave backup files on your harddrive for lgp files, this helps a lot.
For field models, you just need to resize and reposition all the parts in the right place. If you already did this thing, sometimes with some characters the modification of the skeleton itself in kimera can cause this incovenience. Just change the bones lenghts using the manual method.
For battle model, i repeat, i suggest to control your lgp, and i think you will find the 3 files missing (the legs and the head).
I'm not sure if that was a graphical problem, i think is just a glitch.