bj_wantDestroyGroup broken?

Actions
Custom script: set bj_wantDestroyGroup = true
Unit Group - Pick every unit in (Units of type Fel Orc Grunt) and do (Actions)
Loop - Actions
Animation - Change (Picked unit)'s animation speed to 0.00% of its original speed
Unit - Pause (Picked unit)

Unit Group - Pick every unit in (Units of type Thrall Statue) and do (Actions)
Loop - Actions
Animation - Change (Picked unit)'s animation speed to 0.00% of its original speed
Unit - Pause (Picked unit)


the thrall statues get paused, and the fel orc grunts do not... what's going on?

set bj_wantDestroyGroup doesn't work for all blizzard.j functions, "units of type" being one of them (it deletes the group at the wrong time due to the way it uses another function, IIRC). So you need to clean up the groups in the normal way.