Same question!!!
I have many recordings using Logic Pro via Universal Audios Arrow Interface. 1 recording has no sound whatsoever. wavelengths are good, signal shown on Daw as it plays but no sound for this particular recording. Tried switching output to computer speakers, 3 sets of headphones, and headphone jacks on my audio interface. No sound whatsoever. Restarted computer, deleted interface and redownloaded plugins. No help. Whats left to do?