[davidmedeiros]

Actually yes, the same problem happened at the Arizona Regional this weekend.

Our alliance during one of our matches was penalized 22 points in one match due to the issue. The human player on our alliance (from our team, 842) swore he had returned all of the balls back to the field of play but nothing was done about it.

At the regional events one of the things I do is record all of our teams matches to just see how we had done on each match and my video did indeed show that every ball was returned to the match just as the human player had said.

We tried to appeal the match by offering the video as proof and the head ref said our argument was probably correct, but he couldn't accept the video as proof as per one of the rules.

Our team in no way is bitter about what happened at all, we accept it as just "one of those things" that happened.
I am glad however it wasn't just us that have had the problem.