Changing scale of a skeletal mesh component in blueprint?

I have a BP actor with a projectile component and a skeletal mesh component. (I had everything working well with a simple mesh component, before I gave the mesh a skeleton). I have the BP set to spawn my actor at a random scale within range. However, the mesh is being scaled, but the skeleton isn’t. As you can imagine, this is leading to some freaky results.

I need to somehow set the scale to the mesh as well as the skeleton in the BP (I’ve tried both set actor scale 3d and set relative scale 3d, neither work). Is that possible?