Error received when saving the Featured Maps and Apps group to sort ascending settings while configuring the Gallery, Maps and Groups tabs in Portal for ArcGIS Organization settings.
The Featured Maps and Apps group, and any other group, can be set as ascending or descending in the Gallery, Maps and Groups tab in Portal for ArcGIS. The error described in the issue occurs when attempting to save the organization settings with one group set for multiple settings with conflicting sorting order. When setting one group for multiple settings, the sort order must be consistent to save without error.
解决办法
Edit the sort ascending option for the Feature Maps and Apps group from the Group settings. These settings is what is adhered to when editing the group properties from the My Organization Tab.Here is a link to video workflow. <a href="https://www.screencast.com/t/I13JOjqLwe" target="_blank">https://www.screencast.com/t/I13JOjqLwe</a>