An SDH or closed-caption track can include non-dialogue sounds and speaker information to make the programme more accessible.
Why this happens
Captions such as a door closing, music playing or a speaker’s name can be part of an accessibility track rather than stray text. Subtitles for the Deaf and Hard of Hearing often convey sounds that matter to the scene as well as spoken dialogue. A regular translation track may contain less of that information. Neither choice is automatically an error; they are intended to serve different viewing needs. The useful distinction is the type of track selected, not whether the player is showing too many lines.
Look for an SDH, hearing-impaired or closed-caption label in the available choices. If you prefer dialogue-only text and the source supplies it, select that alternative and compare the same scene. Kodi documents preferences that can select hearing-impaired subtitle streams, but other players and devices may use their own controls. Keep accessibility preferences in mind on a shared television so a change does not unexpectedly remove information another viewer relies on. If only an SDH version exists, the player cannot reliably turn it into a separate editorial translation just by changing the font.
A useful way to work through it
Identify whether the selected track is labelled SDH, captions or hearing-impaired.
Compare an ordinary subtitle track if one is offered.
Review the device/player language preference if the accessibility track keeps returning.