I second the move!
With the last PlugIn (of which I needed to use the VST2 as my DAW Reason did not accept VST3) I had loads of trouble. Often accompanied by messages like "mismatch". I was asking support many times the same questions you did above. Thanks to Pipeline I found a way to use the VST3 and the problems disapeared. Now that I had a workaround, Support lost focus. Now with 2021 and the latest PlugIn and Studio One being my main DAW (and ocassionly with Reason still) no more problems so far.
But I still would like to have these questions answered.