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ST-LINK USB driver issue means NUCLEO-G431 does not communicate on M5 Mac with a direct USB-C port connection

CTapp.1
Senior III

CubeProgrammer 2.22.0 under MacOS 26.4.1 is not able to connect to my NUCLEO-G431, with the log window showing:

ST-LINK error (DEV_CONNECT_ERR)

Strange thing is this only happens when I have a direct cable connection between the USB-C port on the Mac and the ST-LINK V3 USB on the board - it works as expected if I connect via a USB-C hub.

VS Code is also not able to connect to the board to run a debug session without the hub, so I suspect this is an ST-LINK USB driver issue on the Mac.

All posts are made in a personal capacity
MISRA C++ Chair
MISRA C WG Member
Director The MISRA Consortium Limited (TMCL)
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