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[HELP] no preview window with vaporsynth qtgmc
#1
Hi,

My preview is not working, so I can't render my current script with VapourSynth. The script was working before. I made the mistake of installing VapourSynth and Python as standalone applications. I uninstalled both of them, then also uninstalled Hybrid and reinstalled the current Hybrid version (2025.07.27.1), but I still can't render.

If I disable deinterlacing and force the file to be progressive, the script works. Or if I deinterlace but turn off the lossless setting in deinterlacing and turn off the despot filter, then I can render.

Another issue that occurs is when I open the vsViewer, it always pops up a message: "Failed to open the file J:/tmp/tempPreviewVapoursynthFile08_10_39_097.vpy." I don't even have a J drive! I was able to get past this error by editing the vsviewer.config and setting auto_load_last_script=false, but that didn't help with the rendering.

I'm on Windows 10, using the latest Hybrid version.
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no preview window with vaporsynth qtgmc - by wolf - 12.08.2025, 10:59

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