It's seldom, if ever that tapatalk updates are straight forward.
Even the easier ones require some additional changes to the usual process
Not sure why their code isn't compliant with SMF.... but it's the reason why SMF wont support them any more and their updates aren't even distributed via the package manager nor any notification support for updates.
When I tried to install this morning, there are two large files which have several differences in the core code and the
replace function fails to find what code it should be replacing. I'll take the forum off line sometime during quieter hours and see if it something which can be manually replaced.