When you use the English version of the name I’m guessing it looks for the movies with an original name in English. Since it’s original name is 마더 then if you use that for your folder and file title it works like a charm.
Using the above names and folder structure it gave this instantly.
So that means original-titles are used for fetching the metadata - which makes sense of course. Just a thought but maybe it would be better to set this up in a way that a perfect match of an alternative title gets preferred over a not-perfect match of the original title…
Unfortunately Korean or other non-latin sign based text is not really an option for me as I still want to have a chance of finding something.
Using the romanized title would be an ok compromise though! I will test this. Thank you!