Materialize effect + key bind event

Hello guys,

I’m pretty new in unreal and start to deal with some issues in BP. i bought a plugin called materialize and i want to materialize an objet in game when i press exemple “Y” key.
The 1st things i’ve tried is to trigger the anim with the “begin to play” event and it works perfectly (screenshot29) but when i put the “Y” key event nothing happen… i thought that key bind weren’t linked but they work perfectly when i want to switch between cameras (screenshot32 attatch). If you could help me, that would be awesome !

Thanks you guys !