[Zubersoft]

I will take a look at this to see if I can reproduce any issues. One thing you can do is bring up the audio player, tap the settings icon at the top right and uncheck "Use advanced audio player". MobileSheets will then use coreAudio for the playback which should work. The metronome requires a high-precision custom audio library, so I'll see if I encounter any issues on my Mac Mini and let you know what I find.

Mike