My suggestion would be to post this in the troubleshooting forum. The troubleshooting team is amazing at helping finding resolutions to things like this. Much better than I, that’s for sure😆, I’m just a programmer.

https://forum.jellyfin.org/f-troubleshooting

Yeah, the server is logging that it can’t parse the SRT file. Sounds like it has issues that need to be resolved before it can send the subtitle text over to the Roku client.

👋😢

Straight off the noto font repo: https://github.com/notofonts/noto-cjk/tree/main/Sans#region-specific-subset-otfs

Couple of things to note.

The Roku has very little file space. Ensure your fonts are as small as possible!

Also, Jellyfin will only grab the 1st font returned by the API. Even if you have a folder full of fonts, whatever is listed first is what it’s going to grab - even if it’s a font file format that Roku can’t use.

I suggest using the otf format. It’s what I have and confirm it works with custom subs.

Due to these limitations, my suggestion is to only have 1 otf font file that is less than 5mb in the fallback font folder.

🤘 Thanks

🤘 Enjoy