How to adjust scale of a Static mesh in a BP class

So I am creating an endless runner in which obstacles (Barrels) are randomly spawned in. I have a BP class for the barrels and I have a BP class for the floor tiles. In the BP class for the floor tiles it spawns in child actor component, with the component being the barrel from the BP class. The problem is that when I scale the barrel it its own BP class it does not also scale it when it spwans into the game. any ideas?

In the class you are spawning, is the barrel the root component of the blueprint?
Also show us some screenshots of your blueprints.

And if the barrel is the root component, try to make a scenecomponent as root and attach your mesh there. Then change the scale of the mesh.