(Reposting here for visibility)
I've noticed that on my daily driver Sansa Clip+ Rockbox completely freezes when trying to use the FM radio. The player becomes completely unresponsive unless I perform a hard shutdown by keeping the power button pressed. This happens with the latest daily build.
Stock firmware and a Rockbox build from 230430 with the same config file both work fine. The issue is reproducible on several other Clip+ players.