Subtitles not working in Plex

[fluid orchid]

Forced is a specific tag for subtitles

unless a subtitle stream is marked as "forced" in the file, it won't show up if forced is selected

Try "Any" or "Default" with English. Default is another tag that may or may not be set, and if the file has multiple languages it'll pick the one tagged as Default, which if it isn't I think it won't show