Enterprise 11.3 and UN 7. I have a UN-capable feature service that includes dirty areas as a layer. I added the service to a map in Pro 3.3 and shared as web map to portal. In the Map Viewer in portal, the dirty areas layer is missing. The other layers come from the same service and come in correctly.
Pro:

Map Viewer

If I try to add the UN layer to the Map Viewer directly, I get

Can someone point me in the right direction as to what I'm doing wrong? Thanks!