Not sure if this is a bug or just design- but running 1.9.10b on an Ion in dual monitor mode with a 2x20 fader wing, the submasters in the master section of the playback screen don't follow the submaster pages on the fader wing. The list in master view of playback will always show the first page of submasters (even if expaned) even thought the top left of a fader wing has been moved to a different submaster page.
Hi there. Yes, that is a known issue.
Eos Product Line Manager