I think I have found the problem which is causing the I/O issue in FL studio.

in the Vst. DAW Settings.

1. go to Preferences
2. go to DAW settings
3. select the last item "Send MIDI Data to Embedded Synth" and
select "enable".(This should really be the default. Me think!...)
4. select OK
this should fix the I/O issue.

I cannot say if this will work with other DAWs but, no harm giving it a try.

Last edited by Robert1752; 03/13/23 02:46 AM.