MoultiPass,
I have a PC...If you do too, can you verify two things for me please!

Open BIAB and launch Sonic VST and open a standalone Sonic 3 from desktop. If you are able to do so, what is the version (built) of your Sonic 3?

This is a single negative issue I have with Sonic, as I constantly have to be aware if it is loaded or not, as two instances in different programs ran simultaneously usually crash or freeze a program which is opened second/last.