spider board on usb

I picked up a Voron 2.4R1 with a spider 1.1 board. I flashed it with a newly compiled klipper firmware and through dmesg -T --follow I can confirm it boots correctly:
[Sat Apr  8 08:52:11 2023] usb 1-1.2: new full-speed USB device number 4 using xhci_hcd
[Sat Apr  8 08:52:11 2023] usb 1-1.2: New USB device found, idVendor=1d50, idProduct=614e, bcdDevice= 1.00
[Sat Apr  8 08:52:11 2023] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Sat Apr  8 08:52:11 2023] usb 1-1.2: Product: stm32f446xx
[Sat Apr  8 08:52:11 2023] usb 1-1.2: Manufacturer: Klipper
[Sat Apr  8 08:52:11 2023] usb 1-1.2: SerialNumber: 300044001050563046363120
[Sat Apr  8 08:52:11 2023] cdc_acm 1-1.2:1.0: ttyACM0: USB ACM device

However, RatOS refuses to detect it and Im stuck on step 1 configure (with a manual flash button).

Any ideas please?
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