Spawning actor yields weird result while walking

Setup a flash grenade and as a test when I press L it spawns an actor.

That part works fine, however if I am walking and press L the grenade acts like a rocket and shoots across the map at like Mach 10.

Here is my setup:

I never get a result like that.
Try to check the collision between you spawner and the granade.
Try to make them not collide.
Did the error happens also if you spawn the granade some meters away out of the spawner?
Lets take a look also at the granade blueprint…

The collision on the grenade is setup as a physics actor

Here is the grenade BP:

How close are you spawning the flash grenade to the collision capsule of your character? If it is a physics actor and it clips the collision of another actor, it could cause the grenade to burst forward,which could happen if the spawn for your grenade takes place while you are moving as the capsule may be moving into the space the grenade is spawning.

It was spawning inside my character, so I made it spawn in front of the character a bit and now all is working. Appreciate the help.