What is your operating system? OSX M1 Mac Monterey 12.1
What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit? 21.12.24
Can you repeat the problem? If so, what are the steps? Trying to create voiceover, in project go to ‘open other’, select audio input device and shotcut just crashes, every time!
It is working for me with a Logitech C920 webcam on a M1 Mac Mini running macOS 11.6.1. Maybe you did not give the Shotcut app permission in macOS’ Privacy Settings