expand deletes all ev functions

Hi,

I have an input schedule with two EVDRE functions (one of which defines a report only area). This was working fine until last weekend. During the weekend, our system was upgraded to 7.50.09.

Now when I use this schedule, refresh brings up data from the database as expected but expand deletes all EV (EVDRE, EVCVW, EVRNG etc) functions from the Excel sheet.

Has anyone seen this before and can point me in the right direction?

Thanks,

Arnold