The thing about crouch jumping is you are supposed to jump and then hold crouch (or if you have a macro, possibly both at the same time). It makes no sense to crouch and then press jump a moment later, that's just bad form (and the only way that would trigger that mechanism)
That wasn't what I was doing. Also, I couldn't have been. If you're crouching, you can't jump. (this also goes for the state where you're exiting or entering a crouch)
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