Deinterlacing outputs small file only

[Selur]

That usually indicates that something with the decoding doesn't work.
Does the Avisynth Preview work without issues?
The used script:

### ClearAutoloadDirs()
SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\LoadDll.dll")
LoadDLL("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\libfftw3f-3.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\LSMASHSource.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\RgTools.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\masktools2.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\mvtools2.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\nnedi3.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\svpflow1_64.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\svpflow2_64.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\SmoothAdjust.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\FFT3DFilter.dll")
LoadPlugin("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\warpsharp.dll")
Import("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\mtmodes.avsi")
Import("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\QTGMC.avsi")
Import("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\Zs_RF_Shared.avsi")
Import("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\InterFrame2.avsi")
Import("C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\LimitedSharpenFaster.avs")
# loading source: C:\Users\Johan\Videos\Inspelningar - ej redigerade\2003-03 till 06 - Lars Linköping.avi
# color sampling YUY2@8, matrix: bt601, scantyp: top field first, luminance scale: limited
LWLibavVideoSource("C:\Users\Johan\Videos\Inspelningar - ej redigerade\2003-03 till 06 - Lars Linköping.avi",cache=false,dr=true,format="YUV422P8", prefer_hw=0)
# current resolution: 640x480
# deinterlacing
AssumeTFF()
QTGMC(Preset="Fast", ediThreads=2)
ConvertToYV12(interlaced=false)
InterFrame(NewNum=50,NewDen=1,Cores=16)
SmoothLevels()
SmoothTweak()
FFT3DFilter(sigma=15.00,interlaced=false)
LimitedSharpenFaster(Smode=3,edgemode=0)
Removegrain()
# setting output fps to 50.000fps
AssumeFPS(50,1)
PreFetch(4)
#  output: color sampling YV12@8, matrix: bt601, scantyp: progressive, luminance scale: limited
return last

seems fine to me.

Cu Selur