Using external subtitles. Only have “PVR recordings” / “Cancel” can be selected

I’m going into Audio, “Subtitle” is not selectable.

I can see where it says “Browse for subtitles”. However, when clicking it, I can only select “Cancel”. I can’t select “new folder”, though I’m not sure that’s the option I need anyways…

What am I missing?

I’m using Wookie build.