As mentuioned in the other forum section:

This is a display bug that will be fixed in the next update. In this case (you are the last human player in a MP game), the Elo score is shown in the wrong order - however, the scoring is correct in the backend and your Elo score will increase. You can verify this in your character profile after the game. Only the score display in the end screen is showing the wrong scores.

Same thing happened to me in Seafarers. Went from 1230 elo to 1000. Thanks team for your hard work!

@Administrator i am not keeping track and taking screenshots, i want to play, not work.. i have reported the bug and other players complained about this as well. Is it now fixed?

@player78322 we are aware of a visual issue where the winning player of a match is shown the Elo and Elo delta of the highest-ranked player in that match. This visual issue will be fixed in the next update. The calculations aren´t affected by this visual glitch

@Bleubyrd this seems to be just a visual issue. You will most like have seen the Elo of one of the people you played with

This morning I kept getting a new error on the Windows app from Steam:
"Error server is blocked due to a long running script"

This afternoon, I can't even search for a game. I can't get past "Auto match" and "Custom match". I click on the button and the screen flashes and sometimes I can see the next screen before I'm back to the same spot.

21 Jan 2020 Unable to play. I can see in my network monitor that the application connects to Catan servers and has traffic. I just can't play.
23 Jan 2020 Still unable to play.
24 Jan 2020 Still unable to play.
...
1 February 2020 Problems have largely disappeared after a server update and I log out and back in

Same issues here.

It looks like once you join a game, one of the players disconnects, ai doesn't take over, and the wait time doesn't disappear after the time is over. Or maybe it's just one of the players failing to connect to the game. Either me or another player is constantly failing to connect to the games.

The other two/three players are just stuck in the game. When they reconnect, it takes them back into the stuck game.

If you decide to leave the game, it costs you elo and stars. But there is no other way to leave the game other than to quit it appears.

I will stop playing Catan Universe until this issue is dealt with. The game is literally unplayable.

Supposedly the last update was going to fix the display issue but instead things got worse. Now when I do a search for someone in the ELO list the display shows just 3 digits!