Hey! Sorry to hear it isn't working. Could you provide more details of how you're playing? Are you using the Windows or Mac build?
It's not an issue I've come across but I would try reconnecting both the mouse and the ps4 controller and seeing if that works. If it still fails, you could try the demo out in Steam and seeing if that helps:
https://store.steampowered.com/app/1953670/Quetzal/
If it still doesn't work let me know and we can figure something out.