Hello,
I've had the neo-cron file corrupt itself a few times on one particular server.
If you open the file is it just blank?
For us, this was caused by a scheduled task that a customer was entering using CFSCHEDULE. I dont know what they did to break it, but break it they did, and continue to do so... I keep a backup and over-write when it happens.
If you have the same type of issue i would be interested in the fix if you ever get one.
Cheers
Luke