Hi,
I've seen this one many times now and it never happend before the SA release: The player model changes for others sometimes. At first you are dealing with a clint and then suddently the player has a Jane model or so. It also happens with Bots which pretty much rules out that players change something on their side.
It is not a biggy but can be confusing. Especially in team games ...
Cheers
Breli