Well, the issue is the flexible cable, and the touch screen it's responding good now. But I can't explain why it needs to be pressed against the TFT pcb for it to work.
Watch this video, I'm having trouble explaining it properly:

https://youtu.be/BvVAHmd0aA8

To fix it, some kapton tape..

PS - also check that there is a jumper in the 3.3V position of the voltage selection jumper pins.

Actually I want to leave it like this but for everybody to visualize the difference of a little misconfiguration…
The (left) part with line numbers is correct, the other is as well just without carriage return and linefeed uploaded as one big line.

all the best duetino

OK I upgraded Duet to1.19.2. PanelDue still as I received it. Will upgrade.

Thanks, Ed

Can you post a photo?