Extremely Long Delay after clicking "Login" on SSDM until login commences

[Gerald E Butler]

I installed the full "kubuntu-desktop" meta-package. Using "Pop_OS!" spin of Ubuntu 17.10. SDDM is the XDM that is being used. When I enter my password and click, "Login", the cursor changes to an "X" and you can't click on anything else or change anything in SDDM screen. It just sits there for 30 to 60 seconds without any sort of feedback or anything seeming to happen. Then, it rapidly displays the desktop. It seems like perhaps it is supposed to be showing a "Splash/Loading" screen during that time, but, I'm not sure if that is what it is supposed to do or not.

CORRECTION #1: I misspoke above. It does display a splash screen after the 30 to 60 second wait on the SDDM login screen. The splash shows and animation for about 5 to 10 seconds before the desktop appears. The 30 to 60 delay is after I click "Login" on the SDDM screen *before* the splash screen appears. While it is waiting on the SDDM screen after clicking login, the cursor changes to an "X" and you can't click on anything or change anything. The cursor can be moved though.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.