As you probably know, once the game is being played in Studio, the emulator cannot be switched as the dropdown menu is greyed out and unresponsive. There is, however, an easy way to bypass this. All you have to do is put your mouse over the name of the current emulator and scroll down.
The bug is reproducible and happens every time on both my laptop and PC. I’m unable to test on OS X and the mouse being used is the MX Master 2S