Custom kscreenlocker set by global theme wont accept password

the desktoppal97 global theme has its own kscreenlocker and it does not accept password when I press enter or click on arrow button, I have to switch user.
I am ok with this as there is an easy workaround
but I am worried something more crucial and without workaround will be found later,
so I appreciate any help I can recieve with identifying the cause of the problem and fixing it.