My friend list was at 48 a day ago and now I check and it’s at 28. Think this might be a server glitch. Can everyone who reads this check to see if you’ve lost friends as well?
Update: Server glitch confirmed.
Just lost around 20 friends too, most of them had good monsters.
This game is unplayable at the moment…
Hope they fix it…
Had the same issue lost most of my friends (all of them had fully evolved legendaries too) 
Only 20 friends remained…
I managed to friend myself with this glitch. I have no clue how it happened…
I think all players have themselves friended.