My issue is that after I successfully connect to my printer (Robo 3D R1+) and successfully upload an stl file that I would like to print, I see that the Print, Pause, and Cancel buttons are grayed out and unavailable. Therefore, I'm not able to print.
So far, I've tried uploading another stl file to see if it enables the Print, Pause, and Cancel buttons without any luck. I tried disconnecting and reconnecting to my printer. I've even backed out of the Octoprint server entirely, rebooted pi, restarted Octopi server and I'm still unable to see the Print, Pause, and Cancel buttons become available for use. I've also switched from using Google Chrome to FireFox, and the buttons are still unavailable after I try uploading two different STL files. Is anyone familiar with this issue and how to resolve it?
I'm running on OctoPrint v.1.3.8, Octopi v.1.4, Robo 3D R1+