August 17, 2014
On WordPress.tv it is only possible to have one subtitle file (per language) associated with any video.
If you have an updated subtitle file, you will first need to break the videos “connection” with the existing file before you can upload it.
However, deleting the subtitle file in the media library is not enough to resolve this issue. You will need to edit the media details for the video instead, as shown in this screencast.