Flash 22.0.0.209 NPAPI asking for admin privileges

Am a sysadmin in an org. Devices are Windows 10 computers, on a domain. Use IE and Firefox browsers. The issue I am having is with the Flash NPAPI 22.0.0.209 msi. We deploy through gpo, got say Flash msi before this one was the easiest gpo I had to do.

Issue began when I set up the gpo and tested it, I set it to remove the previous Flash and deploy the new one, as usual. Usually there are no issues with this, I did not even have a test gpo for Flash prior to this. The GPO failed, flash did not install. the gpo however did remove the previous Flash, 22.0.0.192.

On my testing computers (logged in as domain admin) I attempt to manually install the 209 Flash. It brings up a message stating Flash requires admin privileges. I have tried to install from the file server and from the local drive. All fails with same message.

I then tried installing it through the local admin account off the local drive. This succeeds.

I uninstall Flash, reboot. Then retry it with my domain admin account still a no go.

With no Flash currently, through my domain account I successfully install Flash 22.0.0.192, the previous version of Flash. Upon clicking the Install button in the Flash setup a UAC pops up with a yes or no. I click Yes and Flash installs.

I then uninstall Flash, reboot to be sure. Log on with my domain account then I clicked on the Flash 22.0.0.209 msi and it installs, popping up a UAC asking yes or no to install. Before I installed 22.0.0.192 it would not pop up with a UAC, it would simply state it required admin privileges.

The testing computer and 60 or so of its siblings in production environment are all physical computers. They all are missing Flash now. However a RDS VM is on the same GPO for that Flash and it updated its Flash via the GPO with no issue.

Can someone please tell me whats going on?