Having the same issue, but I don’t have the other plugins mentioned: add-to-cart is working in 3.1.2, but is not on 3.2.0 and later.
Ajax widgets seems to update at first but then id refreshing to empty, cart page is empty as well.
Result is I can’t update WC.. 🙁
I had a problem with latest version & nav_menus.. basically every custom link added to menu has class “current-menu-item” (and so is highlighted) when mqTranslate is activated.
The problem doesn’t occur with the version bichel posted above (2.6.3) and in qTranslate version 2.5.39 (the one i could test)
I’m using wordpress 3.9.1 and Cresado theme by Marcin Michalak
Thanks for your great word and greetings from italy 😉
Paolo
