This is the same issue I am still having in this meanwhile gigantic thread. I have had local issues, but since 778 I also have the Discography unavailable issue, I actually replied in this thread 19 days ago.
this is the thread and @danny and @Lebowski have been very helpful in getting rid of my local problem. But the main issue is still there - As @Alexander_Bashlaev states, less but it still happens.