Version: kdenlive-22.12.2-x86_64.AppImage

Downloaded. Applied R/W permissions to image file.
Set as executable.

From terminal :
sudo ./kdenlive-22.12.2-x86_64.AppImage

The X11 connection broke: No Error ( code 0)
XIO: fatal IO error 22 (Invalid argument) on X Server ":1"
after 433 requests ( 433 known processed ) with 0 events remaining.