Failed to Add Data

[MikeCooperstein]

I'm trying to Add a Hosted Feature Service to a Map. This FS is hosted outside of my organization and is shared with me. I could add this layer to a project in the past, and everything worked perfectly fine. It opens in a map viewer correctly from AGOL. If I try to open it in ArcGIS Desktop from AGOL I get a Failed to Add data Error: code:403. If I try to open the layer from My Content -> My Groups in Pro I get the same error. If I try using the URL same thing.  The sharing preference look fine. Nothing has changed on my end since the last time this worked. Did something change in the last month that I'm missing?