Are you using the 1st post image or the newer one from the 15th post?
I think you might sill be using an older version, try the one from the 15th post.
Are you trying to play anime videos or something else, maybe you have a link then I can try the same file?
I plan to make an updated LibreELEC image, but will have to test it first to see if everything still works with the 4.4 kernel since LibreELEC updated everything to use the 5.5 kernel that doesn’t have support for 4K, fractional frame-rates, HDR or 10-bit color yet.