09.06.2019, 19:13
Yes, Vapoursynth->Misc->Prefer LWLibAVSource over FFmpegSource2 is enabled.
There is no misc.ini on my system either. Looks like I am missing something obvious
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OK, I found the corresponding post.
I created misc.ini and maintained the value.
Now the preview also works with avi files.
But still the original problem remains - Hybrid always crashes after vsViewer has been closed.
There is no misc.ini on my system either. Looks like I am missing something obvious

OK, I found the corresponding post.
I created misc.ini and maintained the value.
Now the preview also works with avi files.
But still the original problem remains - Hybrid always crashes after vsViewer has been closed.