1man Army

If I use HDA Asset in the Starter kit for unreal, and all changes are make in unreal. Do I still need to purchase commercial license if I am making a commercial game?

Houdini Engine is free plugin for unreal now. But if I need to use HDA Asset in unreal for commercial project. Do I need to buy a license for Houdini Indie, or I can use HOUDINI APPRENTICE to make asset and export to unreal for free even the project is commercial?