Originally Posted By: silvertones
Here's a question for you.
Does it always occur at bar 240? Have you tried any other length?

It always occurs at bar 241 if the chord criteria are met that I described in my previous post. Yes, I did regenerate a 10-bar section from bar 235 to bar 245 that involved all the tracks as well as one that involved just one track, and the erroneous chord change occurred both times.
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Tom Levan (pronounced La-VAN)
BiaB 2021 Win UltraPAK Build 833, Xtra Style PAKs 1-11, RB 2021, Windows 10 Pro 64-bit, Intel Q9650 3 GHz, 8 GB RAM, 500 GB SSD & 2 TB HDD, Tracktion 6 & 7 (freebies), Cakewalk, Audacity, MuseScore 2.1 & 3.4, Synthesizer V