I’m using DisplayCal 18.104.22.168 with spiderX under Ubuntu 18.04 and I’m getting Error-new_disprd failed with “Instrument Access Failed” few seconds after calibration process starts. It actually recognized spiderX instruments and reads three different gray colours before stops. I have tried different usb ports. 55-Argyll.rules exists in /etc/udev/rules.d and my user is part of colord group. I don’t know what else can I do.