It seems to be recording what it should right now, but I just turned on the TV and see it popped up an error message:
"Microsoft Windows Search Protocol Host has stopped working"
From the Event log it looks like this happened after the EPG123Client execution on 12/28. There were no errors in the EPG123 log on this date.
I was also having an issue with Remote Potato.
I'm able to log in to it, but unable to get any data from the WMC database. No TV guide, no upcoming recordings, no manage series, etc. I've been having this problem from time to time recently (never had it before the last few weeks), so there is a chance that EPG123 is causing it, although I'm not sure.
To fix this problem, I have to stop and restart the Remote Potato service.