Montage animation nt working

I followed tutorial Third person bluprint
from official channel
I got problem in montage
in montage section
Introduction to Third Person Blueprint game - 16 - Intro to Animation Montage in UE4
till
Introduction to Third Person Blueprint game - 19 - Playing Our Animation Montage in UE4
as per tutorial i exact followed
bt in
Introduction to Third Person Blueprint game - 20 - Using Slot Nodes and Branch Points in UE4
when i follow in begin where punching scene working on mouse button in mine nothing happening
my character doing normal activities bt no punching stuff

please help