Network printers are not auto created in session for some users in certain AD Groups.
The static size of the group-string in the shared memory is limited to 2k.
Thinprint Engine version 10+
Apply the following hotfixes (depending on version):
- TPAutoConnSvc.exe 11.0.542, and TPSvc.dll 11.0.789
- TPAutoConnSvc.exe 9.2.480, TPSvc.dll 9.2.701, and TPAutoConnect.exe 9.2.761