Used to always be there but not anymore. Is there a way to turn it back on (I hope it’s just disabled not removed)
When you say ‘channel volume changes’ do you mean fader moves, or something else?
Yes, fader moves
Just out of curiosity, when you make a fader change, what happens when you click the undo arrow at the top left of the mixer. Does the fader respond or does nothing happen?
Nothing happens
I have two machines running Cubase 14 Pro and in both cases the undo works for all mixer changes, including faders.
Do changes to other mixer controls or plugins show up in mix history? Is it only fader changes that are ignored?
Have you tried starting Cubase in safe mode to see if there’s a problem with preferences?