Hello. So is it problem with gcode that 3DPrinterOS Cloud slicer produces? As I understand everything working fine if you slice file using Slic3r, IdeaMaker or Cura?
As I can see from gcode you have sent printer does not uses some special gcode for extruder heating.
Lines from your gcode
M104 S255 ; set extruder temp
M140 S100 ; set bed temp
M190 S100 ; wait for bed temp
M109 S255 ; wait for extruder temp
Lines from gcode from Cloud Slicer:
M109 T0 S230
I will add a new slicing profile with same starting gcodes like in your file. One more thing that I can see is that there are no G0 gcodes in your file. Maybe your printer doesn’t support them, or just slicer you used doesn’t working with them.