Interfaces are no longer listed under devices after upgrading to 20.3
Release : 20.3
Component : UIM OPERATOR CONSOLE - GROUPS
After looking at the group configuration it was found that each of the interface groups that came over from the 9.x upgrade had the devices added as name 'is' null instead of 'is not' null. Changed this filter to 'is not' and now all of the interfaces show up as needed.