Crusader Kings 3 Dev Tracker

Looks like a problem with the nVidia driver or card:

Fault bucket LKD_0x141_Tdr:6_IMAGE_nvlddmkm.sys, type 0
Event Name: LiveKernelEvent

Please try this:

- uninstall that driver and all other nVidia software
- reboot
- install Feb 2022:

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Is this solely with mods enabled?

If please post in the User Mods forum, thanks.  

Thank you so much for your help!

I've forwarded your saves and information to the dev team now, hopefully we can figure out a fix!  

Hey @Cito87! We've been looking into the save and we have a suspicion that the save attached appears to be a save converted from 1.4.4 into 1.5.0.1. To confirm our suspicion, could you confirm that the save was started either on 1.4.4 or 1.5.0.1?

If the save has been started in 1.4.4, would you also be able to provide us with 1.4.4 save to help solving this case?

Thank you in advance!  

Glennwebb said: (Having this issue with Cities Skylines as well)

That is an unrelated game to this one, aside from both being published by us. Did this first happen with both games at the same time? Best to make a new thread in the CSL support forum anyway.


In the game launcher please set Display mode to windowed.THEN go here:

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Bedo Pasha said: I also optimized CK3

In what way, please? If you are running GeForce Experience, best to unload that while we work on this problem.

If you revert to 1.4.4 and disable the Royal Court DLC, and delete everything in Documents/Paradox Interactive/CK3/ except your saved games, do you still get this problem?  

ogoundry said: After reverting to 1.4.4 there are still frame drops when zooming into the map etc which I'm pretty sure didn't happen before.

If 1.4.4 is crashing now when it did not before, that pretty clearly shows there is an issue on this machine that's occurred since then to cause this for you. What that issue is, is not at all clear to me! It seems the graphics area is mostly ruled out by your openGL outcome.

Did these bluescreens only start happening at the same time?  

So the launcher 2022.2 runs okay for each game, is that right?

Have these two games ever worked on this machine? Or never yet?

If you run the games' executables directly from a terminal command line, what output do you get there?  

The DLCs ought to show in launcher v1 (which BTW is really a client like Steam, not a launcher as such), but there have been issues in taht area it is true.

Did you really want to use that launcher instead of Steam?  

I've been re-thinking this situation. FYI Ironman doesn't actually do autosaves as such; rather it does automated forced saves at certain events and intervals. Its file name is the one you give it when you start the campaign, which really should not be the same as the MP autosave filename. In fact it is by default xxx_1066_Ironman.ck3 , it then just overwrites that file every save (rather than making separate autosave files).

So it is really hard to see how your MP autosave could possibly have overwritten it! You'd have to have chosen a filename for it that was identical to the MP autosave file name, which I'd assume you did not.

So I now have no explanation for the loss of your Ironman save file. It is definitely not in the /save games/ folder, nor on the Steam cloud?  

Bedo Pasha said: ...

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The game doesn't use save slots, it uses the Windows file system. So if you write a file with the same name, it will overwrite a previous file with that same name, yes, as happens with any Windows app.

There is a backup which is Documents/Paradox Interactive/CK3/last_save.ck3 , did that retain your lost game?  

Please delete your Documents/Paradox Interactive/CK3/ folder, except any valued saved games, then start a new unmodded campaign. Is that any better?


IF not, DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/CK3/pdx_settings.txt .
From your Documents/Paradox Interactive/CK3/logs/ folder, attach here system.log , error.log  

ogoundry said: If anything I've noticed that the game seems to run much worse with the Royal courts update. With constant frame drops which usually cause a crash. Whereas before this update there were never performance problems.

If you revert to 1.4.4 and disable Royal Court, does good performance return for you?

You have several LiveKernelEvent and Bluescreen entries in that dxdiag. Are those related to this game or something else?

Please edit that pdx_settings.txt file. Find the renderer entry and change DX11 to OpenGL , save and exit. The ga... Read more

Do you really mean the v2 launcher? Or the v1 launcher, aka standalone Paradox client?  

Moved to CK III  

When you disable Vsync, you'll probably find the fps rate shoots through the roof. That can overheat the GPU, causing the computer to slow it down for its own protection.  

What if you exit the Steam app entirely, and run ck3.exe manually? Any different?  

tieboyx said: This is because your backend service for the Paradox Launcher is still down or down again. I can't log in through my web browser.

Wouldn't that mean everyone got this problem then? Also, the OP has had this issue for a week or more.  

If you. don't mind, can you please delete that error log (and debug.log while we're at it), play the game until the problem occurs, then attach here the new copies of those two files? Thanks!