No $PW variable for RDP connection with ThinOS 9.3

Hello,

Since the upgrade of my test Wyse 3040 to 9.3.1129 (2205), the $PW variable which allowed to connect transparently in RDP seems to have disappeared. However, the $UN variable for the username has been kept.

I now have to enter my password twice because the password of the Wyse login screen cannot be transmitted to the RDP login screen (Microsoft AVD package) as it was before in version 8.6.

Is there any way to bypass the second login screen?

I contacted Dell support by phone, but my warranty only includes hardware support so no software support...

Thanks in advance.