Not sure if it’s a bug or if it’s a suggestion here.
On the scene editor, you have the buttons on the top right that open various panels - Like the object panel, the groups panel, and so on. You can open them, but there’s no obvious way to close them for some reason…? Like, pressing those buttons won’t close the panels you created, and I’m pretty sure an ‘X’ icon is supposed to be here because if you click there you close the panel.
So it’s either a UI element not being drawn or simply… nobody thought there should be an icon there which makes this post into a suggestion post…?