Yup, it's shutting down completely. I'll need to check the version to be sure, but I think I'm on 1.7.0 64 bit. I tried it again yesterday and it wouldn't connect to EQMOD at all. It kept giving the following message '[ERROR] failed to connect to port (/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-PortO)Erro:Port failure error: Input/ouput error. Check if device is connected to this port'. Disconnecting and connecting cables didn't make a difference, so I'm unsure what's happening here.