Make the name of unprintable layers in italic
When in "Layers" Please make the NAME of the layer, if the PRINT box is turned off - ITALIC
ADOBE have fixed this issue.
Uwe Laubender commented
with Illustrator CC 2019 version 23.0.1 this is the case.
At least with my Windows version.
Are you on Mac OS X and cannot see this?
( ACP )