We are developing a client application which has live linear stream. Now this stream has embedded captions for some specific content stream, ie not all video inside this live linear stream has captions only specific ones. The subtitles are webvtt.
When playing this video on Roku, I am not able to show captions. Client confirmed that captions play on Android and iOS.
To test whether there's any implementation problem, I checked with this dummy link from Kaltura