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[RESOLVED] 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 2:48 pm
by ultradave
Symptoms:
* Switch to Beta and Steam downloads and installs beta
* Hit Play on Steam and the Launcher appears
* Select Play on the Launcher and the CMO opening screen does not appear, and after 10 seconds or so Steam reverts to the Play button (intead of Stop).

Tried:
* Reverting to 1.08, and it runs perfectly
* Reset to the Beta, then verified file integrity
* Started up the beta and the same symptoms appeared - no CMO start screen appears after hitting Play in the launcher
* Did this sequence twice

I'm attaching the following exception log. I did try removing all the test scenarios and Autosaves, but that had no effect.

Thanks.

Dave

Re: 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 4:20 pm
by Dimitris
That's quite strange.....

Wild thought: Can you try forcing Command.exe to run as Admin ?

Re: 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 7:57 pm
by chrispman
I have exactly the same issue. Tried running Steam as Administrator, doesn't work either.

I have moved the Steam CMO Folder and revalidated (redownloads all files). No success.

Re: 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 9:34 pm
by ultradave
Dimitris wrote: Fri Nov 07, 2025 4:20 pm That's quite strange.....

Wild thought: Can you try forcing Command.exe to run as Admin ?
Yes. That had no effect. I got a spinning circle for about 3 seconds and then nothing. Good thought though, but I've never needed to do that before.

Dave

Re: 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 9:35 pm
by ultradave
Dimitris wrote: Fri Nov 07, 2025 4:20 pm That's quite strange.....

Wild thought: Can you try forcing Command.exe to run as Admin ?
Yes. That had no effect. I got a spinning circle for about 3 seconds and then nothing. Good thought though, but I've never needed to do that before.

Dave

Re: 1728.2 won't start in Steam Beta branch

Posted: Fri Nov 07, 2025 10:32 pm
by ultradave
I restarted W11, which then kicked off Steam to update itself when I opened Steam, and after that the Beta worked.

That doesn't explain why it worked with 1.08 but not the Beta, but whatever.

Back in business. The one thing I didn't try :-)


Dave

Re: [RESOLVED] 1728.2 won't start in Steam Beta branch

Posted: Thu Nov 20, 2025 4:26 pm
by amizaur
I had the same issue with beta. Game wouldn't start. Restarting Win10 helped.

I have more issues (sometimes I can, and sometimes can't load any scenario in beta) which I'll describe in separate thread.