Question about Cura gcode - Improve your 3D prints - UltiMaker Community of 3D Printing Experts

I have entered my own Start Gcode and End Gcode into the printer settings, see attached screenshots. However, as you can see, Cura also adds its own lines of Gcode that I don't need or want. Does anyone know where these lines come from, and how to prevent them happening?Thanks.

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Interesting discovery. My Gcode flavor swutched from marlin to Marlin Volumetric and I began to have 100% print failures and exstruder clicking(even after multi cleanings) i just wanted to share this if

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