From TDN

Is it really a good idea to disable the onUpdate callback on the owner of the Fade behavior? What if some other behavior is relying on the callback being enabled?

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I'm using TGB 1.7.5 and the onFadeFinish of my class wasn't getting called. I changed line 171 from

if(%this.Callback && isMethod(%this.owner, onFadeFinish))

to

if(%this.Callback && %this.owner.isMethod(onFadeFinish))

This seem to fix it. Is this a proper fix? (I'm new to Torque).