This looks like the same bug as Jeff Hintz and Steve Knecht reported under "Opening Proceedures". I understand it has been fixed, and will be in (I think) 3.13.4. I am not sure when the bug was introduced, nor the nature of the problem, but Tab might so you can try asking him.
This is a serious bug. Having a corrupt election.adt on election day will spell disaster, so if you have a broken release (whatever those are) you'll need to upgrade. Oddly, El Paso TX ran their last election on 184.108.40.206 and didn't come across the problem, but like I say I don't know what triggers it. Or maybe there is a work around; I dunno.