UltiMaker uses functional, analytical and tracking cookies. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. If you agree with the use of tracking cookies, click “I agree, continue browsing”. You can withdraw your consent at any time. If you do not consent with the use of tracking cookies, click “Refuse”. You can find more information about cookies on our Privacy and Cookie Policy page.
Actually, I'm using Octoprint, so I'm going directly from my PC to Octoprint, and not writing to an SD card. Using Cura 4.8.0, there's not a problem, so it's not the file system. After clearing my head this morning, I went back into 15.04.6 to see if anything in the settings might have changed that could be causing the problem, and I found it. Somehow, the number of extruders had changed from 1 to 5! I reset it to 1 and checked it out, and that was the problem. Duh! Thanks for your help!
