Еhumbnail preview does not work

[qo4on]

After completing all four installation steps, the thumbnail preview still does not work properly.
vp9 files don't show the thumbnail preview window at all.

[po5]

This is a known issue with rotated and vp9 videos marzzzello/mpv_thumbnail_script#4.
You could also apply my patch marzzzello/mpv_thumbnail_script#41 and build it yourself, this will fix rotated videos but vp9 will still be broken.

For a full fix, all of this works in thumbfast, a PR #24 is pending.
You can download the modified tethys lua for it. Make sure you also have thumbfast.lua.