[HELP] encode ASS into video export MOV file, subtitle effect is not correct

[ssdde]

encode ASS subtitle into video, export MOV with x264+PCM, but the subtitle effect is not correct.

this is encoded MOV wrong effect, is what i don't want:



the two options have been enabled already:

• Filtering->Vapoursynth->Misc->Script->Prefer VsFilterMod
  
  
• Filtering->Vapoursynth->Misc->Script->Always use Vapoursynth
  

this is correct ASS effect, is what i want:


encode ASS into MP4 is fine, no problem, only MOV got the wrong effect.

sample file, 22MB:
https://drive.google.com/drive/folders/1...sp=sharing