If you will scroll to bottom of Shape node settings without selection any shape and will click Right or Left mouse button - random settings will start appear
This is very bizarre. I can replicate this issue, where the hidden widgets can still be interacted with.
Hidden widgets in QT are non-interactive, so I’m at a loss to explain why this is occuring.
Further investigation revelealed the cause and this is fixed for 4045. This was a weird one - thank you for the report
happy to work for you, master 