Subtitle Preference to 'ON' not saved

bmillham, thanks, but, as I explained in my last post, which was about not being able to search for specific movies by name (which turned out to be a function of the Library but not the File Explorer), that I prefer not to use the Library.
So, like doing without a Search function, I’ll put up with turning the subtitles on manually.
Both items are only niggles.
Thanks to all who’ve answered. :relaxed: