Comment # 1 on bug 1226110 from zb4ng2

I can positively confirm this: 
When I logged in, dolphin didn't start at all (even though I added it to the
AutoStart section). It is not possible to start dolphin via the menu.
The konsole windows didn't show up either, but it was possible to start it via
menu. From there I was able to start dolphin, but the following error showed
up: "Qt: Session management error: None of the authentication protocols
specified are supported" and dolphin had lost the folders.
The same happened to okular: all the okular windows were lost, but I was able
to start okular.
This happened in LEAP 15.5, as well as Tumbleweed, but with a small difference:
All the dolphin windows started, but all the folders were set to "home".