Breaking up BP Actor into standalone actors/components - almost working, need help

No no, I need to do it in the Editor. Nothing needs to be done in runtime.

Yep

That’s what my BP code does. Except somehow when I select resulting static mesh actors, they have no mesh assegned. I know it sounds bizarre, but while I can see mesh in the viewport, it’s None in the Details panel. So after I save/reload level, there is nothing showing on the level.

I … literally posted my BP code that works, and yet somehow I end up with empty mesh component (at least in the Detail panel). So this is what I need to fix.