Unable to have a top tier event be an auction on a Multi-level event.
Steps to duplicate:
1. Open BBEC
2. Select Event
3. Select Add Multi-level events
4. Select Add, Enter a name, Start date, and mark that the event is an auction, click ok
5. Select Add, Enter a name, Start date, click ok
6. Select Add, Enter a name, Start date, click ok
7. Notice that you cannot move the 2nd event under the auction. You can move the auction under the 2nd event and 3rd event though.