First and foremost - I am deeply grateful that you’re developing Scrivener for Windows, I have been waiting for this blessing for years! Keep up the great work, you’re turning our daily fight with the software we need into a true pleasure!
Now to the behavior I noticed – when I create a master folder or master text file directly in the binder (same level with draft, research and trash), all expanded folders contract. Since creating a sub-folder or file within a folder does not cause the same behavior, the expanded folders remaining expanded, I assume this is a defect, albeit a minor one.
I’ll do my best to look for any glitches and defects, and wanted to let you know that I - most like everybody else here - feel honored to help you with beta testing of Scrivener for Windows! Cheers!