"Working with Components on Actors" tutorial won't advance

I’ve completed the Working with Components on Actors part 1 tutorial so I have a brazier blueprint ready to be used, but now the part 2 & 3 tutorial just play the same part 1 tutorial over again. What’s the deal here?

Edit: I think I see the problem. When I start any of the three part tutorials, the engine keeps defaulting my selection to the BP_Sky_Sphere object from the default scene, even though I have an actor down the list. So the tutorial thinks I haven’t constructed the brazier yet.