Video embedded audio track names wrong in iOS6?

I have an iPad 1 (iOS 5) and iPad 2 (iOS4) and an iPad 3 (new iPad) with iOS6

For our application we have a webapp that can show video. The video is transcoded to m4v and containst embedded subtitles and languages.
In the iOS4 and iOS 5 device I can maximize the video and select an audio track from the list (Englis, French, Spanish). If I run the same webapp in iOS6 and select the same movie I can select languages as well but they are named "Stereo, Stereo, Stereo".

To make it even worse: i also have an iPod touch with iOS6. If I press the "Language and subtitle" button while playing the movie (again same webapp and movie) the player removes the bottom controls at all, and it is not possible to play/pause etc anymore.

Are these bugs in the iOS6 player? If so, is Apple working on a hotfix update to solve them ? See screenshots below, made with the same m4v file

(ipad 3 with ios6)

(ipad 2 with ios 4.3.3 / ipad 1 with ios 5.1.1)