Very strangely this also happened to my own application after upgrade to CubeIDE to 1.6.1. I had never before had to comment out #define LWIP_RAND() ((u32_t)rand()) for my application to work. But now yes. Thanks for the tip, it solved my boot issue.
Thanks everyone for pointing me to the right direction with this. I also first tried to use headless_build.sh script, which works fine on the local computer but could not get it to work in the docker container that gitlab uses. This is because there ...
I experienced same issue with STM32F427. My board was bricked because of this but I did manage to find a way to revive it again. So problem began when I tried to set option bytes from code, something went wrong, and all option bytes were set and none...
