Hello. I have the weirdest problem andI’m too nervous to mess with solving it without advice…The Cor Anglais shows up fine in Setup mode as a player (CA only, no oboe doubling), and I’ve been entering lots of music for that player in the score, where it exists, but it’s not listed as a layout in Print mode.
Is there a Part Layout? Check the Right-hand Panel in Setup mode. You can create any missing parts by Setup > Create Default Part Layouts.