Here is what i got from MS....
This issue is being caused by the Quality Issue 87038. I was able to check on this Quality Issue and the work around that we had gone through is currently the only work around for this issue. I understand that this is not the best work around for your client as you are unaware if they have access to the Customization Status window.
The workaround is to disable Revenue/Expense Deferrals in the Customization Status Window.