I'm having an issue with playback. When I open the programme and play any one of my pieces, it will happily playback through my laptop's speakers. Once I plug in headphones, however, playback doesn't happen, the panel on the left greys out, and I need to stop and restart the programme to be able to do anything, even after unplugging the headphones. Any other audio source played through the laptop has no issue swapping between speakers and headphones. I'm currently running v184.108.40.2068021803, which the programme states is the newest version available.