Hmm, trying this out, it seems to not work the first time. When you Save to Roblox through the menu once, subsequent saves via shortcut seem to work for me.
I noticed that when I go to another program and then return to Studio, the shortcut stops working, even clicking on the 3D window, or properties, or any other window.
I would like to note that this behavior also applies to other actions as well. I set a hotkey for Select Children and the hotkey functions properly only after I do the action via right-click.
I am in the process of checking over bug reports and following up on some bugs that haven’t received any activity in a while.
Is this issue still occurring or can you confirm that this bug has been resolved