Why is my Gun montages are not playing?

All character montages are working fine and I am using default slot.All gun montages are not working at e.g when I press fire,only the arms fire but the gun is not firing.

Need more information about how you start your montages, do you get some sort of variable inside weapon blueprint that tells you are firing? or do you specifically invoke “play montage”?

Also is this problem happening in a stand alone game? or server client?

How do your player refers to instanced weapon? are you sure the real owner is firing the weapon on his hand? (Perhaps you could try to add a weapon in the level, and bind it to any key to play montage, and see if that works)

Share a piece of code of your “shoot” event to understand a little bit more.