Error when trying to change QTY in Job Cost Adjustment

I had this error when I would try to change the qty on a particular Job. I was able to get it to stop by going into Time and Expense and change the QTY. However, I was wondering if anyone has had this happen before and if they found out the underlying reason.

@Will79, Did you ever figure this out?
Usually when you run into this you need a data fix.
I would recommend reporting this to Epicor Support

Thanks! I just went into Time and Expense and changed the qty. That seemed to work. Was wondering what the root cause was.