While trying to flash the klipper firmware to an Bigtreetech EBB36, i ran into the following error:
After fiddeling around a bit i finally stumbled across two solutions.
Use Canboot to flash an intermediate firmware
This failed for me but might a possible path to fix it
Use an older version of the STM32CubeProgrammer
I used version 2.10 of the STM32CubeProgrammer which solved the case for me at least.