Can't build a usm that would play

[Epigeos-com]

Hii, I don't really get any of this and Idk I'm probably just doing something stupidly wrong, but uhh

This is what I tried:

ffmpeg -i 'Nyan Cat! [Official] [2yJgwwDcgV8].webm' 'Nyan Cat.ivf'
cricodecs --encode -f hca Nyan\ Cat.wav -o Nyan\ Cat.hca
cricodecs --build -f usm Nyan\ Cat.ivf --audio Nyan\ Cat.hca -o Nyan\ Cat.usm

And it ran fine and all, I tried playing it in the GUI, the hca plays fine, the usm says Preview unavailable: video validation failed, other usms that I haven't made myself play fine