Video snippets created are empty

[Mikelius45]

Hello,

First of all thanks a lot for all your work!

My issue is that the files are there but are not readable because they have a size of 0.
I really don't understand what is happening, I tried tweaking a lot of parameters. The pngs are extracted successfully.
I can send you files if necessary!

(Also I tried generating gifs, but apparently imageio-ffmpeg is not pip installed).

I hope someone can help me, thanks a lot!
Michele Petraccone