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Color change not working

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I tried to do a color change  and just can't get it to work.

in Cura (v3.2.1) I  set post processing mod-Gcode  (  installed the new PY script to  pause height or layer)  selected layer I wanted and   setup other options.

I had two issues


when the pause script ran all the actions happened,  it didn't stop (I assumed it would)  ie print head moved to the side backed out  filament and let me attempt to load new color, but then it went back to printing. and when it did  the new color wouldn't extrude


paused via control panel and fed  filament til color changed and resumed. at this point it  started printing but the new color didn't come out.  I tried a few time, but it would just move the filament in and out of the head without actually printing to the bed.


ended up canceling print and then manually moding the gcode file to start the print just after the pause code. this seemed to work. print finished a little worse for wear, but usable.


So  I assume I did a few things wrong any  help/ suggestions on what to do differently next time would be a big help./






Printer is a monoprice maker select V2.1 

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