Ok. That’s wrong. Keypresses fire multiple times. You need to configure an input and use that.
The proper pathway would be a do once node with the release hooked to open it again.
However, it’s also noticable that your montage is messed up. The animation is factually only playing the “default” and not the other animation.
Check out the getting started youtube series with the 3 combo phunches for detailed walkthrough on how to get this going - including even the buttons.