Yep, happened to me twice many seasons back. The auctions ended for me as if I had won, but I never received the players. Instead, they were sold, in both cases, for one bid higher than what I paid.
But it looks like you got the player after all?
If that's the case, this happens from time to time. Seems a lot less frequent nowadays though, as I haven't experienced it in 5+ seasons. But one time I waited 7 hours for a player to show up on my roster and he missed the game deadline by 2 mins haha.