I’m using your English native 1080p .sup file in these examples.
If encoded with the ‘black bars’ in a 16:9 aspect ratio I get this:
If encoded to a 2.40:1 ratio:
note: I’m still using ver. 9.2 here, still haven’t acquired your most recent version.
Edit: The above example were using Cyberlink PowerDVD 16, which I was using because
VLC is quite choppy playing 4K video but, VLC does display subtitles normally:
16:9 with VLC:
