Twitter "player" card failing validation in spite of successful validation via validation tool


I’m having trouble getting a “player” card submitted to Twitter.

According to their guidelines, we have implemented the necessary meta tags as well as a “fallback” video player as necessary. We have run the result through the twitter card validator as a player card and successfully passed validation. However after submitting several times, we have been denied whitelisting without any reason as to why it has been denied.

The sample card can be found here:

Any help on what the problem could be would be greatly appreciated.