Every time you cross a system boundary the probability of encountering an untested error condition are squared. No, not just increased exponentially, they are squared. I would have hoped that tapatalk, which I think is pretty good (but not for me), would be routinely testing all supported versions of their software against all supported versions of SMF. They may well come up with a compatible version, and get readmitted to the SMF approved mods, let's hope so.