As suggested earlier since it is just 10 clients..you can do a pull install on them from the SAV server and it will work fine..
I have searched a little bit but haven't any perfect response in which release it is fixed..
So since its just 10 do a pull install on them..
Login to the client go to \\SAV server IP or name\VPHOME\clt-inst\Symantec antivirus.msi it will upgrade..