I can't figure out why my multitrack .sesx file is not playing.

[Atena35526223qhg2]

Hardware settings are fine. The whole file is greyed out and  I can't hear it play. Have cleared time selection.

[Atena35526223qhg2]

Yes, I know it's muted, however when unmuted still doesn't play.

[SteveG_AudioMasters_]

Can't see the Master (output) track. Is that muted too, or is the master fader turned down on the mixer? If the cursor moves, then it will have to be something like this. If the cursor doesn't move, then your sound device is disconnected.