[HELP] after encoding ass into mp4, but there is no subtitle at all

[Selur]

Lower left is 'vsfm.TextSubMod' which Hybrid uses when the 'Prefer VsFilterMod'  (https://github.com/sorayuki/VSFilterMod) is enabled.
It should render the files correctly assuming the font names in the .ass file are correct and it finds the files.

Looking at the .ass file you provided, the styles used are '头文字D 电影' and 'engF' which correspond to:

Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
Style: 头文字D 电影,方正悠黑简体 508R,13.5,&H00FBFFFF,&H000000FF,&H00E8E8E8,&H05000000,-1,0,0,0,90,100,0,0,1,0,2,2,10,10,44,134
Style: EngF,Arial Unicode MS,12.5,&H00FBFFFF,&H00FFFFFF,&H00E8E8E8,&H00000000,0,0,0,0,90,110,0,0,1,0,2,2,5,5,13,134

so then I looked at the tff files and what the proper font names were and adjusted the file names accordingly and copied the new files to into my Windows/Fonts-folder:
'English fonts - Arial Unicode MS.ttf' -> 'Arial Unicode MS.ttf'
'Chinese fonts - FZYouHJW_508R.ttf' -> 'FZYouHeiS 508R.ttf'
copied into my Windows/Fonts-folder.
Additionally I adjusted the font name in the .ass file from '方正悠黑简体 508R' to 'FZYouHeiS 508R' and got:


So all in all if you had not messed up:
a. the file names
b. the font name in the .ass
using 'Prefer VsFilterMod' would have worked. (Like it does here once I named the files and fonts properly.)

Cu Selur