Schematics replaced events in ORK 3, so the same thing applies in ORK 2, just using your events instead :)
Generally, your battle events animating your actions do damage (or whatever your action does) when the Calculate node is used, or when using damage dealers/zones, when they hit the target (while they're activated).
If you're using Calculate and wait for an animation to finish before it, I'd guess that your animation's duration isn't reported correctly. You're probably using Mecanim animations?
In that case, Mecanim doesn't report any duration unless you set it up correctly in the ORK animation settings (Base/Control > Animations). That's handled by the Duration Type setting, e.g. using the Animation Clip to get the duration. For this, you need to have the correct name of the used animation clip.