New User with the Startup Kit - Cannot read the GrovePi+ Firmware Verion

I am just starting out with the GrovePi+ with a Pi Version 4 Model B. I have run the Grove Pi on my standard Raspbian image and I can get the script to work OK.

… but I cannot get to work and the troubleshooting script cannot read the GrovePi firmware version.

I have tried various images, modifying the Raspbian image, Raspbian For Robots (Apr 2019) and Raspbian for Robots Experimental (Dec 2019) all behave in the same way.

Could you advise where I can look please?

Many thanks

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