[BUG] Vapoursynth not recognizing subtitles for harcoding.Neither does Avisynth

[Selur]

I got a debug output but no explaination to it.

ClearAutoloadDirs()
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\LoadDll.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\LSMASHSource.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\AddGrainC.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\dfttest.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\EEDI2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\eedi3.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\FFT3DFilter.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\masktools2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\mvtools2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\TDeint.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\RgTools.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\MedianBlur2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\nnedi3.dll")
LoadCPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\assrender.dll")
LoadCPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\yadif.dll")
LoadDLL("C:\Program Files\Hybrid\32bit\avisynthPlugins\libfftw3f-3.dll")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\QTGMC.avsi")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\SMDegrain.avsi")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\Zs_RF_Shared.avsi")
SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
# loading source: E:\The REAL ADVENTURES of JONNY QUEST (1996-1997) - Complete JOHNNY TV Series, Season 1-2 S01-S02 - 480p DVDRip x264\Season 1 (1996-97)\The Real Adventures of Jonny Quest - S01 E01 - The Darkest Fathoms (480p - DVDRip).mp4
#  color sampling YV12@8, matrix: bt601, scantyp: top field first, luminance scale: limited
Source = LWLibavVideoSource("E:\THEREA~1\SEASON~2\THEREA~2.MP4",cache=false,format="YUV420P8", prefer_hw=0)
# current resolution: 720x480
# deinterlacing
SourceFiltered = Source
Source = Source.AssumeTFF()
Source = Source.QTGMC(Preset="Fast", ediThreads=2, PrevGlobals="Reuse")# added PrevGlobals="Reuse" to handle multiple QTGMC instances
Source = Source.SelectEven()
SourceFiltered = SourceFiltered.AssumeTFF()
SourceFiltered = SourceFiltered.QTGMC(Preset="Fast", ediThreads=2, PrevGlobals="Reuse")# added PrevGlobals="Reuse" to handle multiple QTGMC instances
SourceFiltered = SourceFiltered.SelectEven()
# filtering
# embedding subtitles
# Loading subtitle: C:\Users\Rafaela\Desktop\01.The Darkest Fathoms.ass
SourceFiltered = SourceFiltered.AssRender("C:\Users\Rafaela\Desktop\01.The Darkest Fathoms.ass", vfr="D:\TEMP\synthTempTimeCodes__mp4_4148d02dbfa4968fc55d91b3be959c2b_853323747.tc")
# stacking horizontal for filter preview
# adjust color to RGB24
SourceFiltered = SourceFiltered.ConvertToRGB24(matrix="Rec601")
# adjust color to RGB24
Source = Source.ConvertToRGB24(matrix="Rec601")
StackHorizontal(Source, SourceFiltered)
PreFetch(4)
return last

is the script used for FilterPreview.

That Hybrid isn't wast with that script is probably due to the FilterView coupled with QTGMC, you might probably use Vapoursynth or 64bit Avisynth.
-> if you can share a sample with the subtitles belonging

-> unclear what the problem is.