Issue
When updating the sharing settings for pipelines, jobs, etc. typing in a user or group that is known to exist in the organization doesn’t show up in the search box.
Resolution
This occurs when there are more than 50 users and/or groups. Control Hub preloads 50 users and groups for the purposes of autocomplete. If a user or group doesn’t show up, you can type in the full username (user@org) or group name (group@org) and click the add button, and it will work.
Note
This issue is specific to legacy StreamSets Control Hub 3.x. In Platform, the search box has been improved and should autocomplete for all users and groups.