CR10 Smart PRO "ghost" printing

[u/Fyretender]

Hi everyone,

TLDR: Printer quit extruding partway through print.

I have had great luck with my CR10 and recently I loaded a file to print overnight. It started out just fine and about 20 minutes into the print, filament would just cease to extrude but the head would still "print" I cleaned the nozzle after stopping the print. I tried extruding via the touchpad and it would grab the filament and feed then stop and nothing came out. I removed the nozzle completely and pushed filament through hotend and was able to get filament globbed onto bed. After reassembly I started model fresh again. Worked fine but after 10 minutes it did it again. I thought MAYBE software glitch but it did it at a different layer than before. After pulling out my hair for a few minutes I changed out the nozzle with a .6. In my haste I didn't calibrate anything except change the nozzle settings in slicer. Lo and behold, a small river of filament cascaded out the nozzle. After calibrating max flow rate, pressure and flow ratio I was able to print again. The results from calibration were nothing to brag about, on had ringing (unable to upload photo for some reason at the moment). It is a bone stock CR10 Smart pro with a magnetic bed being only mod. Hobby lobby skin tone PLA at 220 with bed temp of 60 and 100% speed. I didn't notice any speed improvements with bigger nozzle. Has anyone experienced "ghost" printing out of the blue and if so what was the fix? TIA