Since Tuesday 5/21/2019, none of our Hub Team members can save edits to Hub pages. The only users that can save edits are AGOL Org Admin level users.
As mentioned, this behavior started recently. One of our Team members had a page that had been open over the weekend. Today he was able to save a small text change, but after saving\viewing the edit and starting a new edit session, he was no longer able to save changes.
The error message which appears at the bottom of the screen is:
Error: Unable to save site domain changes
Any idea what's going on?