It's worth taking a backup, resetting, then unpack the backup and only restore the minimum userdata items like sources/passwords and add-on settings data; everything else should be clean installed. Don't just restore the backup, as if the issue is something gone bad, you'll end up restoring it and negating the clean reset.
I'm fairly confident it's something local to your install or environment. If the add-on was generally broken we'd see complaints from more users, and we're not.