Cannot get an animation montage to trigger on keystroke

Hello,
I’m trying to get a gunfire animation montage to trigger on my (action mapped ) keystroke.
It simply won’t respond, I have the slot setup in the animation blueprint, and assigned in the montage.
I am struggling and I’m thinking it probably is something simple that I’m not seeing and I need help…

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And One more screenshot

Me too facing same issues but for play animation montages function

I managed to get the issue fixed after stepping away for a couple of weeks,
then watched the tutorial here: