Help with trigger creating an extra unit when spell is used

[Zigzagoon]

Hey all,
I was working on a map, and I couldent get why this trigger

• Event - Unit uses an ability
• Conditions - (ability being cast) equal to Change to Footman
• Action - Unit - Remove (triggering unit) from the game
• unit - crate 1 footman for owner of (triggering unit) at (position of triggering unit)

was creating another unit on top of it. i don't want the triggering unit to be killed, as when it dies it is resurrected back for the other team (the unit is a circle of power)
there are also 2 more identical triggers, with each one changing to a different unit. the triggers seem to get these mixed up, as the second unit is one of them.
EDIT - I cut out one of the 3 triggers, and it swaps between them just fine. again, its getting them mixed up.
also, when i use one spell, the other go's off. i think this may be the problem, but how to fix it?
any ideas why this is happening?

 

[Maker]

You might want to use "replace unit" function.

I think if you remove triggering unit, and then try to have action with trigering unit, it fails, because the unit you refer to isn't there anymore.

 

[Zigzagoon]

yeah, i tried that,
but its doing the same thing. duplicating and stuff.
but this time, no matter what spell i use, it just switches to the next oone, in a never ending circle, so i dont have aas much choice.