The problem is one of timing. To solve this, create a vector variable in the projectile called “InheritedVelocity”. In the details panel, set it to “Public” and “Expose on spawn”. Now go to where you spawn the projectiles and you will see the inherited velocity pin. Plug the pawn velocity in there. Then in your projectile, when you set the initial velocity, add in the inherited velocity. It should work fine (I’ve done it before).