Guaranteed Repro of Expression Map Bug

Hi again…
So I finished making a second test project and put preferences and EM together in a zip file https://1drv.ms/u/s!AlWU8e7V8SIuhN0P6IUSFr8LdAD94A?e=4rOeSH

Video here (0:35)

another video here (2:04)

Other notes

  • this uses Kontakt 6 and a Kontakt factory library patch Double Bass
    twice in around 5 minutes of normal playback on loop provided examples of EM reverting to the uppermost expression during regular playback. (in my other test I had occurrences while starting playback OR while locating, too)
    In this test I placed the ‘tremolo’ articulation on top so it is audible.
    Expression maps are not busy, very regular programming.
    It doesn’t seem to be a issue with a particular VST, but behavior with Realstrat on the start/stop occurrence seemed to be worse.
    When reducing the number of tracks the issue seems to vanish.
    On one test I let it run with me away from computer for around 15 minutes and nothing happened (no random change)
    It seemed to occur more when I am at computer using mouse etc…
    My midi controller is not powered on.
    I have run Latmon to confirm I am not having latency spikes.

My thoughts is it’s not a computer spec issue but a limitation or perhaps a resolution (timing) issue.
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