chuckebaby
you can always try reseting the midi engine.
its located right inside the transport module.
this shouldnt happen unless your device is not being seen right away.
sometimes reseting the ME does this.
look at it from a few different angles,does it only happen on the first synth you insert,or does it happen with everytime you insert a synth?
I reset the Midi in the transport module and it does play the synths, but so does stopping and starting again.
I can reproduce the symptoms consistently.
I open sonar and then a song that includes soft synths.
I hit play and all the audio plays normally but no synths. (altho 1 of the two synth track meters is active)
I simply rewind or sometimes, stop and then play again, and the synths are now included in the playback and both midi track meters are active.
These are not frozen tracks and there is no audio track for them, just the midi data tracks.
My controller is a Boss BR800 and remains on the whole time. I'm not aware of anything needed for it regarding midi.
I guess now that I know this always happens i can just compensate by restarting but wondered if there was a setting I'm missing is all.