We just noted an issue with the Avatar importing where it would report a failure to import, but the avatar was actually imported correctly. Is this the issue you're seeing, or is it the other way around? Also, please check in all the "Integration" tabs in the admin area which areas (CB, Kunena, etc) are set to "Import Avatar", and make sure CB is set, and the others are set to no (if you don't want them to be).
Thanks for the feedback.