When playing certain AAC tracks the audio engine appears to completely stop at certain points in the track. I have seen this with a few different tracks and it’s reproducible. It’s always the same point in the track. What I observe is that there’s a section of the track that appears “blank” in the waveform. When playback hits that point in the track, audio completely stops being produced from any track producing audio (not just from the problematic track). Pressing play/pause or clicking anywhere in the waveform immediately returns playback to normal for all tracks.
I would be happy to provide more detail like a video capture or logs. This pretty much a non-starter for live playback so I’d really like to help get this fixed.