Leader Selection Tool Firely Death

[Blackcloud6]

I'm trying to use the leader selection tool for AAD 16 and keep getting the "The PG-HQ Engine has apparently died a fiery death. The Site Admin has been automatically notified via a distress email. Please proceed to the escape pods." notice.  I've tried other scenarios in other modules too just to check and it keeps happening.  It looks like the tool is not working.