RatOS installation: Flashing Octopus V1.1 via DFU - DFU not detected

Octopus v1.1 - RatOS-2.1.0-RC2. Initial setup, connecting RPi to Octopus, power supply is connected but not powered.
My board doesn't reflect the image in the setup Wizard, but I believe I've got the DFU jumper set correctly (img 1 & 2).
Moonraker lights up green, while Klipper turns red in the Wizard.
When I connect a monitor to the Pi I see an error message "unknown config object 'bed_mesh'" (img 3).
Can I continue with the build guide pt 12 electronics as my board is detected in the configurator or is there something wrong ?
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VCore_4.jpg
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Solution
That's the dfu jumper. The one you've highlighted is the V_USB jumper that connects USB 5V to the onboard 5V rail (you very much want to remove that..).
image.png
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