Help needed on script/spell

[Konfusion]

I'm working on a mod that makes a race that becomes invisible at night. I have the following script

scn RaceShadowElfChameleonSCRIPT

Begin Gamemode

if ( GameHour >= 21.5 || GameHour <= 5.5 )
player.addSpell RaceShadowElfChameleon
else
player.removeSpell RaceShadowElfChameleon
endif
End

on an ability that the race reveives. This ability is on self and has 0 as the Duration. edit:And it has "script always applies"

I have a second ability that is triggered by this (see script) that has 100% Chameleon and also has a duration of 0.

 

Does anyone have any idea why this might not be working?

[Konfusion]

I'm done with the mod, questions have been resolved... I'm uploading it right now (same link as the one in my sig).

(go ahead and lock it :) )