It would sure be helpful if those having trouble would post here what version level of the app they're using. That way, those of us who aren't having trouble could try to avoid that version...or know what we might be in for!
Well, we did say the latest version, this may not help historically, but it's the version currently in the app store.
There are several negative reviews for the app that have appeared in google play over the last few days, people with the same problem.
I'm also getting duplication of tasks, but this is localised to the database on the phone, as I can't log in, the problem hasn't been synced to the data on the web... yet.