FBX export legality

If we import some assets into Unreal Engine, place the assets and construct a scene, and then export parts of the scene as an FBX. Is the FBX still covered by the EULA of Unreal Engine?

If we sell the FBX as an asset on other market places besides the Unreal Marketplace, is it a violation of the EULA?

This also might include geometry we created in Unreal.

Under the precise facts you outline, I can confirm there is no royalty obligation.