Taskbar will not “disappear” during Remote Desktop sessions anymore
Simple FIX
I have notice from time to time when connecting with RDP and set the session to full screen the Taskbar refuse to hide . what works for me is to reset windows explorer :
CTRL+ALT+DELETE -> Task manager (Or just right click on Taskbar and choose Task Manager) -> Mark Windows Explorer -> At the bottom Click restart
Thanks for the workaround, It worked for me