I am trying to allow some of our administrative staff to view the screens of employees during training sessions. I would like to use Remote Assistance since it already comes with Win10 Pro. I have already added the Group Policies to open the necessary firewall ports and allow members of a certain group to offer assistance. I also set the Group Policy to "Allow UIAccess applications to prompt for elevation without using the secure desktop". I created a shortcut on the offerer's desktops that opens the Remote Assistance application with the /offerra parameter. I have tested the setup with from my computer, with my credentials, and everything worked fine. I have verified that the GPOs have been pushed out to both the offerer and recipient pcs. I have verified that all of the staff that should be able to offer assistance are in the group listed in the GPO.
The problem is that some of the staff will try to offer assistance, but the prompt to accept assistance never shows up on the recipient's computer. I can see that the Windows Remote Assistance process starts running if I open the task manager, but the recipient cannot accept the assistance offer because they are never prompted. Other users can offer assistance to the same recipient on the same computer, and the prompt shows up and everything works fine.