I can't find an answer in the manual. I had opened a session and created several instrument tracks. everything went great.
I closed and saved the session. the next day I wanted to go back into that session and record a new instrument track. when I click on Edit Instrument button, open the Halione control panel, click to load presets the Category window is blank.
I no longer have instruments to choose. huh?

what is going on?
how can I continue to add tracks?