I'm currently trying to evaluate the Pro-Q3 3.11 (x64) with Adobe Audition CC 2018 on two different PCs.
Both of them running Win 8.1 Pro and Adobe Audition CC 2018.
With the .vst3 version, Pro-Q 3 doesn't seem to catch the Audio Signal, no matter wether Sidechain selected or not.
With the .vst version, Pro-Q causes Audition to crash.
Same behaviour on both machines.