[BUG] Bugfix version closes immediately after launch

[Selur]

Same effect different cause.
This time it crashes because of a decoding problem.
x264 aborts with:

y4m [error]: bad sequence header magic
x264 [error]: could not open input file `-'

encoding call:

"C:\Program Files\Other\Hybrid\64bit\Vapoursynth\vspipe.exe" "C:\Users\colin\AppData\Local\Temp\encodingTempSynthSkript_2021-01-02@21_21_12_7610.vpy" - --y4m | "C:\Program Files\Other\Hybrid\64bit\x264.exe" --preset veryfast --pass 1 --bitrate 4000 --profile high --level 4.0 --sync-lookahead 12 --rc-lookahead 40 --qpmax 51 --weightp 2 --sar 64:45 --qpfile "C:\Users\colin\AppData\Local\Temp\The Silence of the Lambs (1991) {tmdb-274}_2021-01-02@21_21_12_7610_05.qp" --deblock -1:-1 --non-deterministic --range tv --stats "C:\Users\colin\AppData\Local\Temp\The Silence of the Lambs (1991) {tmdb-274}_2021-01-02@21_21_12_7610_06.stats" --demuxer y4m  --input-range tv --fps 25/1 --output-depth 8 --output NUL -

the Vapoursynth script:

# Imports
import os
import sys
import ctypes
# Loading Support Files
Dllref = ctypes.windll.LoadLibrary("C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll")
import vapoursynth as vs
core = vs.get_core()
# Import scripts folder
scriptPath = 'C:/Program Files/Other/Hybrid/64bit/vsscripts'
sys.path.append(os.path.abspath(scriptPath))
# Loading Plugins
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/GrainFilter/AddGrain/AddGrain.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/DenoiseFilter/NEO_FFT3DFilter/neo-fft3d.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/DenoiseFilter/DFTTest/DFTTest.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/EEDI3.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/ResizeFilter/nnedi3/vsznedi3.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/libmvtools.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/temporalsoften.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/scenechange.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/Support/fmtconv.dll")
core.std.LoadPlugin(path="C:/Program Files/Other/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/vslsmashsource.dll")
# Import scripts
import havsfunc
# source: 'S:\video\Rips\Films\The Silence of the Lambs (1991) {tmdb-274}\The Silence of the Lambs (1991) {tmdb-274}.mkv'
# current color space: YUV420P8, bit depth: 8, resolution: 720x576, fps: 25, color matrix: 470bg, yuv luminance scale: limited, scanorder: top field first
# Loading S:\video\Rips\Films\The Silence of the Lambs (1991) {tmdb-274}\The Silence of the Lambs (1991) {tmdb-274}.mkv using LWLibavSource
clip = core.lsmas.LWLibavSource(source="S:/video/Rips/Films/The Silence of the Lambs (1991) {tmdb-274}/The Silence of the Lambs (1991) {tmdb-274}.mkv", format="YUV420P8", cache=0, prefer_hw=0)
# making sure input color matrix is set as 470bg
clip = core.resize.Point(clip, matrix_in_s="470bg",range_s="limited")
# making sure frame rate is set to 25
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# Setting color range to TV (limited) range.
clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1)
# setting field order to what QTGMC should assume (top field first)
clip = core.std.SetFrameProp(clip=clip, prop="_FieldBased", intval=2)
# Deinterlacing using QTGMC
clip = havsfunc.QTGMC(Input=clip, Preset="Fast", TFF=True)
# make sure content is preceived as frame based
clip = core.std.SetFieldBased(clip, 0)
clip = clip[::2]
# set output frame rate to 25.000fps
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# Output
clip.set_output()

Does seem fine to.

-> Does the Vapoursynth preview work properly?

Cu Selur