Every time an external device is connected or disconnected while studio one is open, it freezes and will either crash or stay frozen until task manager ends it. Doesn't matter if the external device is usb or midi. And it's every single time.
external devices I've used are the atom SQ, Alesis Command X E-kit and a yamaha mx88 keyboard
Windows 10 64 bit, intel i9 10850k, 64gb ram.