Animations

I’ve been looking into an issue I’ve been having where players spaz uncontrollably and eventually altogether turn invisible, which is fixable by starting and stopping a recording.
After a few hours of googling and searching these forums I’ve only found a few vague posts eluding that it might have to do with assigning NPC animations to players, although the posts I found were the models slightly twitching, where my problem is more along these lines:

http://www.furiacontralamaquina.com/blog/uploads/reflexiones/02-headbangers-tocapelotas/headbanging.gif

but which animations are the old 8-way ones, and which ones are 9-way?? there seems to be no clear list of what animations are usable