Flash3kDB causes Vapoursynth to crash

[The_Tinkerer]

Oh geez. It must be something weird just on my end then. Dang!

I don't have any custom configs set up, so when I start Hybrid it starts at the defaults.

The crash happens on any file. I've tried several so far, mpeg, divx, h264, etc.

Start Hybrid, load file, go right to Vapoursynth -> Artefacts tab, tick "Deband" with Flash3kDB set at defaults.

If I click the Vapoursynth preview button, it crashes:

Faulting application name: vsViewer.exe, version: 3.0.0.0, time stamp: 0x5df3b11e
Faulting module name: vsViewer.exe, version: 3.0.0.0, time stamp: 0x5df3b11e
Exception code: 0xc0000005
Fault offset: 0x0000000000014e64
Faulting process id: 0x16e4
Faulting application start time: 0x01d616c45a1cf1bd
Faulting application path: C:\Program Files\Hybrid\64bit\Vapoursynth\vsViewer.exe
Faulting module path: C:\Program Files\Hybrid\64bit\Vapoursynth\vsViewer.exe
Report Id: 9c37eaad-82b7-11ea-93cf-0050560b8935

If I click the Vapoursynth preview button first, the preview viewer loads. I can frame advance normally. If I then tick Deband with Flash3kDB set at defaults, the preview viewer "locks" at the current frame; I can no longer frame advance. The preview viewer application itself isn't "locked" though. The Vapoursynth Editor log displays:

Failed to evaluate the script:
Python exception: Failed to load C:/Program Files/Hybrid/64bit/vsfilters/DebandFilter/Flash3kDeband/flash3kyuu_deband.dll. GetLastError() returned 193.

Traceback (most recent call last):
  File "src\cython\vapoursynth.pyx", line 1946, in vapoursynth.vpy_evaluateScript
  File "src\cython\vapoursynth.pyx", line 1947, in vapoursynth.vpy_evaluateScript
  File "C:\Users\ADMINI~1\AppData\Local\Temp\TEMPPR~1.VPY", line 5, in <module>
    core.std.LoadPlugin(path="C:/Program Files/Hybrid/64bit/vsfilters/DebandFilter/Flash3kDeband/flash3kyuu_deband.dll")
  File "src\cython\vapoursynth.pyx", line 1852, in vapoursynth.Function.__call__
vapoursynth.Error: Failed to load C:/Program Files/Hybrid/64bit/vsfilters/DebandFilter/Flash3kDeband/flash3kyuu_deband.dll. GetLastError() returned 193.

Looks like the vapoursynth.pyx python/cython script errors. I can't find a cython folder anywhere (I'm assuming it's built into hybrid.exe?). I *do* have Python 3.6.3 x64 installed (C:\Program Files\Python 3.6.3). Do I maybe need to change this to a different version? My PATH environment variable has C:\Program Files\Python 3.6.3\ and C:\Program Files\Python 3.6.3\Scripts\.