What steps will reproduce the problem?

Dispel a magic buff using Shield Slam

What version of Parrot are you using?

v2.3.1-classic-bcc

Do you have an error log of what happened?

No Lua errors, the dispel just does not output.

Please provide any additional information below. (example: localization of your client if not enUS or enGB)

Raw combatlog shows the dispel

6/12 16:49:14.248  SPELL_DISPEL,Player-4453-0000B83D,"Bushido-PyrewoodVillage",0x511,0x0,Creature-0-4479-530-13417-17137-000044BB50,"Boulderfist Mage",0x10a48,0x0,30356,"Shield Slam",0x1,6742,"Bloodlust",8,BUFF

Outgoing > Dispel (and dispel fails) are enabled and assigned to an output.