Hi Samuel,

That's unusual for a library of your size. This type of issue can often occur with large libraries over 75k tracks, but it's possible you are having the same issue.

It's caused by the OS killing the process to prevent overheating and excessive memory use. There's not a lot we can do about that. However, we are working on a "Selective Sync" idea where you can pick and choose the playlists you'd like to sync. I'll keep you updated on that but for now here are some things to try:

1. Make sure all other apps are closed and perhaps also restart your phone.
2. Make sure you have a stable and fast internet connection.
3. Go to Settings/Debug and tap "Reset Local" (make sure you use the correct reset option "LOCAL").
4. Now login and see if it works.

Let me know how it goes!

Remko
MIXO team