[SOLVED] RemoteApp blue background unwanted

[Okoss]

TSplus version : 11.50.9.16
OS : Windows 2016 Server Standard

Hi everybody,
On few computers, since few days, when i log on, instead of a clean RemoteApp with only the applications window i have a fullscreen blue background (see the attached picture) behind the applications windows. The full user desktop is recovered by this blue background.
In this state, the Universal Printer is not working at all.
The accounts are not set to RDP but RemoteApp.

When a computer is on this state, i can log on with all the account i want : same result; i can change windows session : same result
When a computer doesn't have this blue background, all the account log on on him work fine.

Do you have any idea ?

[hansen]

Try 11.50.9.25, since one of the changes was:
"Sometime RemoteApp was showing a blue background. It is fixed now"

[Okoss]

So Simple
Thx a lot