Model not showing up ingame or in buildable.

Im follwing the tutorial in the docs on creating a solar panel, and i have downloaded a model that i want to use. I immported the model and its texture and it looks great in the preview of the static mesh, but i dont know how to get it to show up in the FGBuildableGenerator Blueprint. I think thats the reason why it also isnt showing up ingame. There i can select it in the build gun bu it doesnt have a model and i also cant interact with it, as it has no hitbox