Fixed Dedicated Server Starts in Co-op, But Doesn't Work

For more information see here Bug Report Template

Build: 1.11.7
Mode: Co-op, Survival
DLC Installed: YES

SERVER NAME: "Waldo's World"
SEED-ID: Any, if it's a Co-Op world.

If applicable:
MODIFIED PLAYFIELDS:

Reproducibility: Consistent.
Severity: HIGH. Render Co-Op mode unplayable.

Type:
Dedicated Server won't boot up properly.

Summary:
Any Co-Op game (whether with a custom scenario or even just a barebones vanilla survival) doesn't boot up the dedicated server.

Description:
The only scenario I used was "Reforged Eden 2", & it was working just fine up until today (2024-08-30). It was last working 2 days ago, on 2024-08-28. I had a friend whose Empyrion was updated to the same build as mine, & his old Co-Op game ALSO wasn't loading the dedicated server correctly. I did 1 more test: Created a new Survival Co-Op game, no custom scenario. Same thing with that.
I already tried restarting my PC, & restarting Steam. No change.

Steps to Reproduce:
1) Either load up an existing Co-Op game, or create a new one.
2) Dedicated Server will start, but does NOT show "Save & Exit" button.
3) Wait for connection to Dedicated Server to fail.

Screenshots, Crash Logs, any other Relevant Information or Download links:

 

Hello,

I can confirm this problem. We were playing on 2024-08-29 the last time and everything works perfectly. But when i tried to play with my friend on 2024-08-31 again, the described problem occured the first time.

I'm glad that this problem doesn't just affect me.

Many thanks for your work!

 

Hello!

Confirmed here too.
(by the way, i don't use any kind of mod)

On a sidenote: Experimental doesn't have this issue. So, its only affecting the normal Co-Op (Dedicated) game.
One more interesting fact: the locally created Co-Op game (same computer), with the 127.0.0.1 IP address, doesn't work either.

 

I have this issue too and looked into the logs and the issue seems to be with the Qos region selection.