I don’t know so much about VST3. I have only used some VST3 plugins in my DAWs and they have all worked fine.

But now when we have VST3 support in BIAB I was about to test some of VST3 audio plugins in BIAB.

Are there any limitations on what to expect?
Should expectations be that all VST3 audio plugins that I can use in my DAW also should work in BIAB or are there some limitations that only some plugins should work?

I was just doing a simple tests on a audio track in BIAB.
First I tried it out with the master stem track and then I tried it again with another audio track and loaded a new audio file to it.

In both cases I selected my Melodyne Assistant 5.4.2 VST3 plugin.
It opened ok but did not load the audio from the audio track so I could not use it.
Question is should I expect Melodyne to work or not in BIAB or are there any configurations required.

Then I opened another audio VST3 plugin, EZMix3 and that seemed worked fine on the audio tracks.