New iPod doesn't show last played/play counts

So I've had this new iPod Classic 160GB for a couple of weeks, with no problems until yesterday. I like keeping track of how often I've played songs, how long ago, etc. for playlist purposes. Yesterday I listened to 40-50 songs on shuffle while studying at school, but when I connected the iPod to my iMac, sorting the songs in iTunes by "last played" didn't show any activity for 11/6/12. None of the play counts or ratings on the songs I remembered listening to were updated either.

Most of the Google searches I've done for this issue seem related to iTunes Match, which isn't an issue here. I'm using manual sync. I never had a problem like this on my old 80GB Classic (earlier generation/OS than the new one) that just died after 6 years, so could this be related to Genius or something else?