Another person having the ArcPro compatibility isssue.

Unfortunately I'm still getting the same error.

Have you recently opened ArcGIS Pro? Every now and then you need to log in again.

I thought of that, but I'm in it all the time. I'm starting to wonder if our IT dept is to blame, they've been doing a lot of security shenanigans to try and lock things down tighter. I have an AWS workspace that's outside of their realm, I'm going to try it there and see if I get the same results. BRB...

So hey, guess what. It works on my AWS workspace, which is in our cloud, not our organization network. What do I tell our IT staff about what they need to let me do? What is FME doing when it's looking for an ArcPro license? We use a license server rather than AGOL for our ArcPro licenses, but the end result is that it's going on the interwebs I assume to see if the license is valid?

As I think about this some more... FME is getting a license from the exact same License Manager, as is any workbench that deals strictly with "ArcMap" features, which still works. What is different about ArcPro licensing on a License Manager than everything else?