I have noticed a problem a few times this year. The Propadex freezes up for the first day or two of a new calendar month. It appears the history files are not being rotated to reflect the new month until someone gets around to it. The missing file causes the Propadex calculations to abort, so you see the values that existed at midnight on the last day of the previous month.
A day or two into the new month, everything starts working again.
I will try to find a work-around for this problem.