So we performed a Domain Change on our Production Enterprise Portal (11.5) over the weekend. We previously tested this in Dev and our Sandbox, and the execution went off with out any major hiccups, nor have we had any major issues afterwards. The minor exception is our Access Notice cannot be changed or Turned Off.
Before the domain change, I had a notice set up for two weeks explaining when the change was happening. After execution I changed both the Information Banner and the Access Notice back to normal. The banner change took, but the access notice refuses to be changed or turned off. I've tried both. I've tried changing it using the built in Admin as well as an sso admin. I've tried changing it by logging in via :7443/arcgis/home. I've tried changing it via multiple browsers. The portal UI always says it works, but it never sticks.
Even more strangely, if I open a different browser and immediately test after changing, the change will stick for a few seconds before reverting back to the predomain change notice.
Has anyone encountered this before? I'm about to test changing it via the /sharing/rest api in my DEV environment... but this was strange enough I wanted to share.