Altiverb 8 and Nuendo 13 issue

I recently found Altiverb 8 has some problems when switching IR presets in Nuendo 13.
I am not sure if it became heavier CPU loaded than Altiverb 7 or maybe there is a bug in 8.
I have 3-4 altiverb 8 plugins in my post production project.
The automation of switching IR preset does not change correct as I wrote and it even goes crazy like changing IR back and forth and knobs shaking in altiverb every time I play the project.
This happens to all my workstations with Nuendo 13.
Does anyone have similar issues?

How dows the same Session in N12 behave?
Just a thought to rule out a Nuendo 13 problem, I have no Altiverb 8 and am not on Mac… so…

N12 seems to be fine.
And it often causes CPU overload in N13, but not in N12.

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I have the same kind of problem. The Snapshot automation doesn’t work.

N13 and OSX 13.6.4

This might be a bit obvious, but has anybody emailed Audioease support about this?

I just did. Waiting their response. Usually Audio Eases support is quite fast.

Audioeases response:

"I recommend to choose one of these two options to ensure get predictable automation:

  1. do not use snapshots at all, simply dial/recall your settings and write all parameters to track
  2. if you do use snapshots (automation preset index is the parameter called) then disable all other parameters for automation"