I am using opensuse leap 15.2 with LXQT. 
In the LXQT menu I have Yast and several Yast Components such as 
Yast Network, apparmor, software management, printers etc. etc. 
If I click on one of these to open it I get a window which says - 
sbin/yast2 system_settings
password - 

I input my password but nothing happens
If I click on yast instead 
/sbin/yast2
password

Yast opens normally and so do all of it's sub modules, printer, network,
software, etc. 
I am thinking this is a syntax error in the commands for the other yast
modules. I am sure this is not a problem in KDE for instance. 
So far this is the only bug I have discovered with opensuse leap 15.2, it's
stability is so far better even then that of debian, congratulations!