The default subtitle selection is Traditional Chinese subtitles, but Simplified Chinese subtitles are automatically selected.

[hellotaeyeon0214]

The default subtitle selection is Traditional Chinese subtitles, but Simplified Chinese subtitles are automatically selected.

[moneytoo]

Would you have more details? Ideally media sample or at least MediaInfo output?

[hellotaeyeon0214]

Text #1
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 47 min 20 s
Bit rate : 56 b/s
Frame rate : 0.264 FPS
Count of elements : 749
Stream size : 19.5 KiB (0%)
Title : Simplified
Language : Chinese
Default : Yes
Forced : No

Text #2
ID : 4
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Duration : 47 min 20 s
Bit rate : 56 b/s
Frame rate : 0.264 FPS
Count of elements : 749
Stream size : 19.5 KiB (0%)
Title : Traditional
Language : Chinese
Default : No
Forced : No

Nova is paired with just-player. Both subtitles are set to Traditional Chinese. As long as the video has "Simplified" and "Traditional", "Simplified" will be automatically selected. "Traditional" subtitles cannot be automatically selected.