It does ask for the Cooldown, but only when not in the Ability Editor. The Ability Editor purposely doesn’t calculate cooldown since it doesn’t use it. Like I said, I may make that an option so if you want to test your cooldown logic in the Ability Editor - you can.
If you try your Ability when in a level or in game, you should hit your breakpoint (at least, I did).
Interesting. Any special repro steps? Or just try and spawn the Target Actor?