GW 2012 - folders shared with other users

Server running GW2012
Just tried this on my OES Server with GW 8 Linux clinet installed

Using GW8 Client (Linux) - other users can move folders I've shared with
them into another folder I've shared with them as they have been doing for a
long time.

Using GW2012 Client - other users CANNOT move folders I've shared with them
into another folder I've shared with them (as they have been doing for a
long time and as GW8 client still does).

This is a real show stopper