Hardkeys stop working properly on GIO after updating to 3.1 or later

Anyone else having troubles with their Display-Key on a GIO after updating to 3.1.1 or later? 

Generally the Hardkeys seem to double their klicks like 2/3rd of the time.

When I keep the Display button pressed the brightness popup will appear but when I just klick it to bring the cia up or down it will do nothing 9 out of 10 times.

And the arrow buttons for example will jump 2 rows in the cia like 9 out of 10 times.

Tried it with 3.1.1, 3.1.2 and 3.1.3

Now I went back to 3.0.2 and behaviour is normal.

Never experienced that on TI or Xe.

Tried it on the second GIO in that venue to check what the behaviour will be like and had the exact same behavior.

I've been told that the GIOs are from around 2019, all Displayports.

Would it make sense to check for the OS version?

Can't do right now as I'm sitting in rehearsal.

Cheers & thanks

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