Player dies while shooting and running.

I imported a custom gun mesh and it works fine except for the fact that if the player fires the gun while running forward or to the right. It does not happen when the player is running to the left or back.
If this has something to do with the fire bone for the gun, how is this remedied?

The vendor advised that there some things in the BPs that should have been there and were not. After updating the BPs it still did not function properly so I deleted the muzzle flash bone and made a new one and moved it to the front of the gun barrel and now it works perfectly.