Threads in Forum with xthreads field not visible in mybb go mobile

[ZiNgA BuRgA]

Stick junk in the template.  If it doesn't appear on the page, it's being excluded.
If it's excluded, switch to your normal theme and see where the template is being included from (the template comments help).  The template may be excluded from the mobile theme for a reason, in which case, you'd have to come up with a solution.