Hi,
after deleting a whoping 1,100 spammy trackbacks, I cannot list TBs anymore through the main dashboard view (mt.cgi?_mode=listpings). I get the following error :
Undefined subroutine &MT::CMS::TrackBack::substr_text called at lib/MT/CMS/TrackBack.pm line 586.
I can list them fine if I access them from an individual blog, the error pops up only from the general overview. This is from an MT-4.21-fr code.
Any idea? Thanks, François
Reported on Movable Type 4.2

Reported as bug 82032.
There were 4 TBs in the database without a title, I filled in the 'tbpingtitle' filed for each mttbping record, and the error went away. Looks like a function isn't properly declared in the Trackback script.