Scrivener 3 beta 12 - section types bug

I’m reading the “what’s new in Scrivener 3” collection in the tutorial. I was following the instructions about the section types, and when I changed the “Default Types by Structure”, the folder “The Basics” stayed in structured-based “chapter” while he should have been considered as a part. The other folders in the same indentation were correctly structured-based.

I solved the problem by changing temporarily the indentation of the folder, which now reacts as it should have react the first time.