Hi,
I do not believe this to be what's taking place. the ERA is actually configured to only push antivirus installs to servers that show up in a custom dynamic group and meet the criteria that they: 1) have the agent already installed 2)have no antivirus product.
The servers showing the issue (restart required message never goes away) are a mix of systems that were already deployed and updated, as well as freshly deployed systems that had the agent but no av, so the dynamic group pushed the install of File Protection, or they were created from a master clone with the AV and agent already installed.
There does not appear to be anything I can point at that relates the systems showing this issue. So far Repair install on File protection will work, as well as completely uninstalling and re-installing the AV software.
Restarts, of any method, do nothing.