Here2 weird led behaviour

Only the one marked on the PCB as LED2 blinks as it should. The other three are solid white.
I put it in CAN mode and went through all available upgrades: bootloader upgrade, manual firmware and online firmware upgrades. All sensors register OK on CAN. I can enable/disable the baro and it shows or does not. Still, only LED2 does the colourful job, with strobes on and off, as configured. The other three LEDs stay solid white, no matter.