Pawbuster has an AoE called Great Cleave that he uses like a metronome every 20 seconds.
Unfortunately whilst Traumatic Swipe will hit and do damage to him, it does not have any effect on the recast time of the AoE.
As a consequence, if Traumatic Swipe is used on Pawbuster, ACT will mistakenly predict that the AoE will go off 10 seconds later than it does.
We have asked out Swashie to take it off his hotbar to prevent him using it by accident.
There may be other npcs that have this problem too, so the spell timers window may need a checkbox to turn off Traumatic Swipe.