No sound adding a VST2 plugins to a GM MIDI file track.

[Orvil Ivie]

I have a question in regards to adding VST2 plugins to a GM MIDI file track.

For some reason I can’t get SI-Bass Guitar or any of the SI-plugins to work on a MIDI track!

STT-1 & Addictive Drums 2 are good, they work and behave fine.

I disable all MIDI hardware outputs in preferences then insert the SI - soft synth as a simple instrument track at this point I can open the soft synth get sounds fine but…as soon as I add it as an output to a MIDI track it stops working (no sound).

Yes I’ve used them before and had no problems. I’m stumped!