Just a shot in the dark.Have you used copy/paste
while building the models?Maybe some of the selections
are "sharing".If you did copy/paste,did you re-define
If you can't find a solution I'd be happy to take a look.
No promises,but maybe I'd spot something you missed.
A fresh pair of eyes can help.
erm.. yes i'd copied the wheels from a other tank... so can i fix the bug when i delete all the selections.. and make new selections? ( they're all in the same pbo)