Problems with LibreElec on Pi4b

[Hiryu]

Morning everyone!
Yesterday i tried my first Pi4 (i have the 3b ) to play movies on Libre Elec and i had 2 big issues: Audio is not coming at all! And on all videos i see a lot of red artifacts.
I played with settings (i have experience with kodi 18.5) but nothing changed.
Is it maybe the microHDMI defective? i purchased it on Amazon
thanks for you advices!

[Hiryu]

is anybody there?

[fruitoftheloom]

is anybody there?

You need to use the HDMi nearest the power port.

Did you install LibreElec using Etcher Software to create a bootable SD Card
?

https://www.balena.io/etcher/

https://libreelec.tv/raspberry-pi-4/

[Hiryu]

yes i used that hdmi, but no luck.
BAlena is freezing my PC, i used Rufus