The setting is saved, for me anyway. I get AI-caption automatically quite rarely gives a feeling there is some strange going. At one point I was totally sure it works on public categories only, but now I’m quite sure it is just depending size of images. Same reason why [grid] is useless.
So… I reckon the actual issue, vanishing settings, is fixed. Kind of, because killing history, cache and cookies of Safari (iPad) wakes up the request of allowing automatic caption, and on every category, but then it suddendly stops. It shouldn’t ask it, because on settings I’ve allowed captioning.
I think we need a new topic of ghosting AI that is possessed by strange spirits.