Projectile Not spawn in the Muzzleflash , and double jump and fly

Hello, I have a few problems in UE4

  1. Projectile not spawn in the muzzle flash of the weapon Take a look at my bluprint please

  2. and the scend problem is if i click few clicks like double click on the space keyboard than i like flyng in air on how much i click. ho and i use anim sterter pack.

you know how to fix that?