Vini77 Weird, considering that the boot splash doesn’t even have graphics drivers online when it plays (it’s all done in software mode on the CPU, that’s why you get laggy videos sometimes because there’s no hardware acceleration).
If the video splash is indeed not working, then you should make an issue report about it on the Github. It works for me on my machine though, so you’ll need to do some thorough investigation (possibly rolling back the version to double check its behaviour on the hardware) to not be met with scrutiny.