'Search for use' of a calendar event is not working properly for calendar events where this event is used, at least, in 1 OFFSET calendar event. In this case calendar event is found in all OFFSET events in the same calendar object, even they are not used there.
Affected version: Automation Engine 12.3.2
Component: AUTOMIC WEB INTERFACE
The issue has been identified as a bug and will be fixed in Automic Web Interface 12.3.3 (already available on the Download Center) and newer versions.
The JAVA UI will show the correct results; other than that there is no workaround.