If the device is placed on the B(F.Cu) side, it will no longer be displayed

Layout
21

retiredfeline

You are correct, from now on I will use the terminology used within Kicad.

22

jmk

Thanks for the explanation with images.

The part you advised had the same settings as you.

23

Clutching at straws, if this is a V5 conversion, is it possible that the stackup has got messed up?

24

davidsrsb

I’m not good at English, so I’m using a translator, but I can’t understand it.
Who is this comment for?
Is V5 the Kicad version?

25

The OP had said that his was a conversion of an old KiCad V.1 project. My guess was incorrect as the solution was found to be a switched off visibility

26