Why are captions on TV shows sometimes different from the words the actors say, but in ways that aren’t explainable by being misheard by a transcriber?

Question

For example, the actor in the movie just said “I’ve been saying that”, and the caption said “I’ve said that”. Do the transcribers have access to the screenplay, and use that as a starting point?

In: Other

Answer 1

Aren’t most captions coming from the production house, based off the actual scripts and dialogue. I don’t think anyone is actually listening and taking notes in 2024. Unless is pirated/bootleg or something old.