Troubleshooting playback (it's silent)

Is there help or a flowchart for troubleshooting when things go wrong with playback? In my case, everything is silent.

I attached a screenshot below. This is from a project I began as a new file from the orchestral template, so I was hoping everything would be loaded automatically. But anytime I hit play, everything’s silent. When I opened the HALion instance (not sure why it starts with #2 and not #1) it looks blank…and I have no idea what to do…

I wish there was a flowchart where I could learn to figure out what’s wrong when things like this happen.

There is a command to assign sounds to unassigned players.

Or reapply the playback template (Play > Playback Template)

Thank you!