Yes, I found the similar bug in Rise of the Golbins as well.
I played in Steam (PC) and IOS (ipad & iphone) and Android. When I create a team in Rise of the Golbins, it cannot sync and disappear to either IOS or Android.
However, when I checked the characters of the team, they are locked and cannot delete or add to another team.
So I played in Steam again and found the team is there!? Then I use Steam to delete the characters (and team) in order to release the characters' slots.