Ideation: Searching for users in Setup group admins dropdown hides the returned results

Issue Summary

Searching for users in Setup group admins dropdown hides the returned results.

Steps to Reproduce

1. Go to Ideation (internal)
2. Click on Setup and select a group
3. Click on Admins dropdown to add users
4. Search for some users that exist
5. Observe the results load and disappear

Expected Results

Results should stay visible so the users can be picked.

Actual Results

Search results are not shown properly:

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available.