M5Paper hangs when using Shutdown with something plugged on Ports

[inkto]

If I use the M5Paper alone, without any module plugged on Ports ABC, I am able to use the function Shutdown(time) and it works. However when some module is plugged in (for instance, the BPS sensor module) whenever i make a call to Shutdown(time) the system hangs. Is this an expected behavior?

[felmue]

Hello @inkto

just curious. How do you determine the system hangs? Care to share your program?

Thanks
Felix