Check when the text appears
Netflix notes that subtitles may appear with the subtitle setting off when a title contains dialogue in a language other than its original language. If text appears only for a brief exchange rather than throughout the programme, that documented condition is one possibility to inspect before repeatedly toggling the general setting.
Keep the original-language context
Record the exact title, edition, selected audio and the scene in which text appears. A dubbed audio choice and the production’s original language are different pieces of context. Do not assume a few translated lines mean the entire subtitle preference has been ignored or that the player has switched the whole programme into another language.
Distinguish other text sources
A system-generated live-caption overlay or text physically present in the picture can have a different source. Use the actual player controls and any active device caption feature to identify the layer. Change one relevant control at a time and retain a harmless scene reference rather than clearing the account profile to address a few lines.
Describe the limited observation
If the text differs from what the provider’s guidance leads you to expect, report whether it is occasional or continuous, which track was selected and when it appears. A short precise description gives support more useful evidence than saying subtitles cannot be switched off without distinguishing the kinds of text involved.
Questions, answered
Does occasional text necessarily mean the main subtitle switch failed?
No. Netflix documents a foreign-dialogue condition.
Should a device-generated caption overlay be identified separately?
Yes. It is a different possible text source.