Overdrive Media Console can't recognize iTunes after 12.1.1.4 upgrade

I have successfully used Overdrive Media Console to transfer audiobooks to my iPod Classic (160GB) for a couple of years. However, after upgrading iTunes to current 12.1.1.4 version on my PC (Windows Vista), when I try to transfer either MP3 or WMA audiobooks, Overdrive says it cannot connect to iTunes. I have uninstalled and reinstalled both iTunes and Overdrive multiple times without success, and have reset my iPod. Overdrive support advises that this issue sometimes arises when iTunes upgrades, but that its current version of Overdrive Media Console, which I have, has fixed this issue with iTunes 12.1.1.4, and they are "unable to duplicate" my problem using current iTunes and Overdrive versions. Any suggestions?