Resolved! (some) example projects don't use *.ioc file?
E.g. the FatFs_USBDisk sample does not have a *.ioc file.Maybe not all example projects use STM32CubeMX?(the issue sounds like https://community.st.com/t5/stm32-mcus/creating-stm32cubmx-ioc-project-for-older-stm32cube-firmware/ta-p/49664)How can I en...