The polo event I just entered into just kept entering my horses into the one team even when the team was full and I was expecting it to move over to the next team. http://www.virtualhorseranch.com/events ... 5081&club=
Polo will not allow you to enter onto two teams now, which is probably the cause of this glitch. It should not have let you enter any more horses once the team was filled. Will ask Nef to look at it.