PersistentStringEnumerator storage corrupted in actionscript

Hi,

My co-workers and I (three of us total), are seeing this exception several times a day.  This is on 98.231 on both Windows and MacOSX.  It ends up triggering two to three full rebuilds before it starts respecting dependencies again, taking perhaps 30 minutes each time.  This wastes hours of our day.  We really like the speed and other improvements of Idea X, but we have to consider going back to 9 because of this bug.  We've tried clearing caches, etc...

Is there anything we can do to help track this down?

http://youtrack.jetbrains.net/issue/IDEA-60565

Thanks so much for making great software,

-f