on KVR, robin has also reacted, to the problems with the vst3 implementation.
i didn’t try it yet, was busy with the better editing, already great results. the playback, with frequency range, simple but great.
tried first a waves plugin, because the shellss, trueverb, worked.
then softube tsar-1 (the biggy), preview does not work, and the spectral display of the selection/layer disappears, i.e. the visualisation, as the sound.
also with for example brainworx digital V3, or IK multimedia CSR plate. same problem. applying, only keeps one small portion of the sound, i.e. almost all is gone…
didn’t try other plugins, too many, to check… but it seems a common problem… if more info is needed…