I've had similar issues. It's rare but a nightmare to debug when it happens. One thing which consistently caused problems was OOM errors on compilers (fairly ea

I've had similar issues. It's rare but a nightmare to debug when it happens. One thing which consistently caused problems was OOM errors on compilers (fairly easy to encounter during a parallel yocto build). This was suprisingly effective at poisoning the state of the system (I'm not sure why this compared to any other failure was so problematic).