Rendering is stopping. no error ?

[Selur]

Avisynth script looks fine

LoadCPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\ffms2.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\svpflow1.dll")
LoadPlugin("C:\PROGRA~1\Hybrid\32bit\AVISYN~1\svpflow2.dll")
Import("C:\Program Files\Hybrid\32bit\avisynthPlugins\InterFrame2.avsi")
SetFilterMTMode("DEFAULT_MT_MODE", MT_MULTI_INSTANCE)
# loading source: E:\Machina\Shell Doc\Shell History of Motor Racing Volume 2 The Golden Age 1919 1929)_4.50x_2880x2160_Gaia-CG.mp4
#  input color sampling YV12
#  input luminance scale tv
FFVideoSource("E:\Machina\Shell Doc\Shell History of Motor Racing Volume 2 The Golden Age 1919 1929)_4.50x_2880x2160_Gaia-CG.mp4",cachefile="C:\Users\Machina\AppData\Local\Temp\12_27_10_5210.ffindex",fpsnum=25,colorspace="YV12")
# current resolution: 2880x2160
InterFrame(NewNum=50,NewDen=1,Cores=48)
# filtering
PreFetch(12)
return last

so the issue is either:
a. heat problem
b. memory problem
c. problem with the source

Seeing 'current resolution: 2880x2160' and 'Cores=48' I would bet on 'memory problem' since Hybrid uses Avisynth+ 32bit and thus can not allocate so much memory.
-> better use Vapoursynth since:
a. Hybrid uses a Vapoursynth 64bit
b. Vapoursynth is better in scaling with multiple cores

As alternative:
1. try enabling Avisynth->Misc->Miscellaneaous->AvisynthPlus limit memory, this might work but will probably slow down the processing quite a bit.
2. lower the core count in the Interframe settings (a lot)

Cu Selur

Ps.: When using Interframe (doesn't matter if it's with Avisynth or Vapoursynth) you might also want to enable the 'GPU' support in case your gpu&driver combination works with Interframe. (from me it works fine with Vapoursynth, but not with Avisynth)