Hi Carley,
We have three Korean dramas on the watch list. It is the same for all. After selecting the "change" button top right of the screen, instead of the two lists for subtitles and audio side by side, there is a limited choice across the top of the screen. The first time I went into Disney on the 360 box, I put Bigmouth, K-drama, on the watch list, I then started playing it and was able to, off the two lists, side by side down the screen,(yes, they appeared that one time) select Korean language with English subtitles. However, next time we went to watch it we got the "overdubbed in American version". Went to change it but did not get the two lists side by side down the screen, just across the top of the screen with no Korean language choice.
Oddly enough, when I sign into Disney on my laptop I get all the right settings, it remembered what I put in that once on the tv/360.On my laptop I can watch any of the K-dramas in Korean with English subtitles.
I have already rebooted the 360 box but that didn't fix it.
Regards David