LXQT desktop wallpaper problem

Hi,
The title says.
I am testing LXQT on my desktop.
It can’t set properly the desktop wallpaper on three monitors so I disable the third
monitor and used the remaining two. Still its having problem.
The wallpaper is always cut or overlapping. There is also no option to use a different wallpaper
to each monitor. I am using kwin5 as my windowmanager, if it is relevant to the problem.
I poke around the net and saw this problem but have found no solution.
Thanks in advance,
conram

I asked here to soon.
I think this is solve for now.
I switched to the openSUSE Leap 42.2 LXQT git repo and the problem of overlapping wallpaper is gone.
The only missing part is, how to obtain a different wallpaper to each monitor.