Particle deforms when moving camera. How do I fix it?

Hi! I have added a muzzle flash particle emitter that is attached to my character weapon. When I fire and move, the particle deforms. This deformation is only visible to the moving player, and not players who are standing still while observing. How do I fix this? See attached image. Left is standing, right is moving along X axis (left to right).

Post screenshot of your attachment if this doesn’t work. My guess is it’s attached to your actor and translating as you move, you’ll want to use Spawn Emitter At Location rather than Spawn Emitter Attached.