Hi,
Yes I have disabled ThinPrint redirection and default printers are retained between sessions now.
But I have still an issue with printers connection at login which randomly fail to show in printers manager. In FlexEngine Async log I see informations saying that UEM took several times to map the printers, and waited 4500 ms for example.
A manual refresh of UEM environment in the session reconnects properly every printers. Is it possible to increase UEM timeout at logon?