threads before page split inconsistent

[محروم.كوم]

I have an inconsistency between sub-forums. One works great with 40 threads per page, the other just lists all 900+ threads and ignores the threads per page option.

I have VBulletin Options > Forum Display Options (forumdisplay) > Maximum Displayed Threads Before Page Split set to a value of 40. This appears to be a global option, but I can't get it to apply globally. Is there some forum specific option I need to set? The forum specific options that I see are identical between the two sub-forums.


To view the two sub-forums:
One without page breaks: http://www.faultwire.com/forums/forumdisplay.php?f=5
One that works fine: http://www.faultwire.com/forums/forumdisplay.php?f=17

Currently using v3.8.3. __DEFINE_LIKE_SHARE__