Quite a few times I have, by mistake, drawn a volume automation on a track with no prior volume automation. Unfortunately, undoing volume automation doesn’t move the volume fader back to were it was - also there is no entry in the mix console history. The only way to return to the previous setting is to revert to the saved project, which is far from ideal. It seems like the mix console history is not doing it’s job.
EDIT: The issue occurs only when Virgin Territories are enabled.