I have a portal hosted layer that has multiple different views. There was a need to add additional fields to the layer. I added the 2 fields to the hosted layer but the views from that layer did not get updated. Looking through esri support there is a fix for ArcGIS Online but I could not find anything for Portal. Do you all know of anyway to update my current views without creating new view layers?
https://support.esri.com/en/technical-article/000017596
I found the solution! Scenario 1: We've added new fields to the parent Feature Layer but cannot see them in the View Layer...
This solution worked for me in Portal 10.9.1. Hope it works for you too!