For what I understand the undo gets back to some of the old passages, but not all of them are in the list of "undo-able" passages.

One thing is certain: it happens only in rare occasions and
it is related to something new in Biab 2010 as I had no problem from old Biab 9 to former Biab 2009a.
I


Sergino
Bandinabox 2024 standard (2020 Audiophile)
VST3 plugins on Studio One Pro 6.1
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MOTU: 2408 MkIII - 24i - Traveler - MIDI Express XT