Rewinding in app auto turns on subtitles?

So I just noticed when I use the 10 second rewind option on the Dreaming app (iOS), it seems to turn on subtitles for that section.

Do any of you know if this intended or a bug?

If it’s intended I very much dislike it. However, since I’ve never seen anything like this on any app, I’m not sure if maybe mine’s just freaking out or if it’s a bug or whatnot.

Are any of you seeing this?