V-core3-Octopus 1.1 -Pi 3a+ Ratos 2.02 : stops printing randomly #solved

Hi all,
This printer has been running about 2000 h.
It started to stop at various height (tried different prints), without any error message.
It seem to just reboot completely.
I've upgraded from Ratos 1 to 2.0, reinstalled.
Same bug !?!

Only thing I did yesterday was change the Rapido nozzle, very carefully.

I wish I knew how to diagnose klipper.log ....

moonraker_8.log287.27KB

klippy_42.log3.41MB