automatic firmware failed

Dear RatOs developer
following the last Klipper update, I have a problem with the automatic firmware update with my manta 8P v1.1
My solution is to choose dfu mode at http://ratos.local/configure?step=1
the manta 8P v1.1 is detected and I have a choice between automatic or dfu firmware, as the automatic function failed previously when updating klipper, I chose dfu mode and the new implemented firmware works .
Since firmware.config is not standard on my system, what is causing the automatic update to fail?
The only difference is
CONFIG_INITIAL_PINS="PC3"
TIA

ratos-configurator.log4.46KB