Opening a prototype didn’t open as expected.
Steps:
Create a new project
Add a new prototype
Close Project
Re-Open Project
Change to “World Context”
Click Open
Click Open in the Prototype section
Select the prototype
The editor opens as if it is opening the prototype, but instead you have to double click it in the list for it to actually show it properly.
I don’t think you have to close and re-open the project for this behaviour, but that’s what seems to definitely persist if not.