The CVBS output is not fonctionnal

Hello,

I downloaded de latest build, but the AV CVBS output does not work, where can I find a build withe CVBS enabled ??
I have an Openeelec Wetek Box (special openelec edition)
LibreELEC-WeTek_Play.arm-7.0.1 (in the download section) does not work.
echo "576CVBS" > /sys/class/display/mode in commandline works but only a part of the screen si visible
But how do Iset the screen size ?
At the PAL-CCIR-TV I can only see the left up quater of the Kodi-Picture on my complite TV screen!???
The Kodi software says the picture resulution ist still 1280x1080......

I found an older image on LibreELEC 7.0 with support CVBS analog video output for WeTek Play.
LibreELEC-WeTek_Play.arm-7.0.0-cvbs

Is there any other solution ?

I found a solultion by downloading the image
LibreELEC 7.0 with support CVBS analog video output for WeTek Play.

And then apply:

ssh wetek_ip_address "echo 576cvbs > /storage/.kodi/userdata/fallback_cap"


Why does it not work out of the box ?