Hi, I'm using last Emby version 188.8.131.52 on Linux casting to Chromecast Ultra.
Have no problem with SRT subtitles, but subrip take tame to appear, sometimes 10 seconds, sometimes 20 minutes. The video plays perfectly the whole time.
The only thing I believe correlates with that is that when subtitles load properly the video status I see from emby android app refreshes in real time, and when not, the time remains still (I can still control the video via stop, pause, audio, etc) disabling/enabling subtitles on the fly doesn't change the behaviour.
Any idea of what can be happening?