My 645 (non-music) froze on the first run after the update to 3.30. See attached error-log.
I was using the back to starting point function (straight line) while this happened. The watch never froze before,
Mentioned in a separate post but since 3.30 I've lost audio prompts direct from watch on my 645M (i.e without linking via a phone and the Connect app). I've been working with Garmin support to try to resolve but despite checking all settings and a couple of complete resets there's been no resolution. These were working before the update but I switched them off when I got a couple of lockups when playing music. To be honest I'm considering returning the watch for a refund as my personal experience (and a few others judging by the posts here) is that it's still very much a work in progress with fixes for one problem seeming to cause many others and I just want to know my running watch is reliable and provides all the features I paid £400 for.
Jsford1: I use the Stryd Live with 3.3 without problems. I take distance and speed from Stryd.
Afaik GPS has to be turned on and has to record a track in order for the performance values to get updated.
Press and hold UP, then select SETTINGS, then select AUDIO PROMPTS. Turn on the ones that you want and you're GTG. Knock on wood, I haven't had any lock ups what so ever with music and my prompts on...