I have the K1 printer. I am using the Creality Print slicer. I am trying to figure out how to switch filament color during printing. I have found the settings for this in the infill tab and advanced tab. I enter in the layer numbers I want the filament switch to occur, but the printer ignores it and continues printing right past the layer I want to switch colors. I am sure I am not doing something correctly, but I can't figure out what it is. On the color change mode dropdown is says, "backlist" (I have no idea what that means), "2 color printing", "3 color printing", etc, I have tried different settings, but nothing seems to work. Any help would be appreciated.