External SUP subtitles fail to load

General
1

Recently, Infuse updated to support external SUP subtitles, but I noticed that when playing videos with external SUP subtitles via Infuse connected to Jellyfin, the SUP subtitles fail to load. Please fix this.

2

Are you able to provide more details on what you are seeing?

Are these subtitles listed in the Jellyfin web UI?

Do the subtitles appear as selectable in Infuse?

3

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Jellyfin can display external subtitles and load them successfully when played via the web interface, but the external SUP-format subtitles are not visible when played through Infuse.