Duplicate CK III - Mismatch and desync in multiplayer

  • Victoria 3 - Sign up now!

    The journey begins, sign up now and get a special in-game item when the game is released.

  • Crusader Kings III Available Now!

    The realm rejoices as Paradox Interactive announces the launch of Crusader Kings III, the latest entry in the publisher’s grand strategy role-playing game franchise. Advisors may now jockey for positions of influence and adversaries should save their schemes for another day, because on this day Crusader Kings III can be purchased on Steam, the Paradox Store, and other major online retailers.

    Real Strategy Requires Cunning
  • Crusader Kings II Expansion Subscription

    Subscribe to the CK II Expansion and enjoy unlimited access to 13 major expansions and more!

Not open for further replies.


23 Badges
Jul 26, 2014
  • Crusader Kings II
  • Crusader Kings II: Horse Lords
  • Crusader Kings III
  • Crusader Kings II: Holy Fury
  • Shadowrun: Hong Kong
  • Shadowrun: Dragonfall
  • Shadowrun Returns
  • Tyranny - Bastards Wound
  • Tyranny - Tales from the Tiers
  • Crusader Kings II: Monks and Mystics
  • Tyranny: Archon Edition
  • Crusader Kings II: Reapers Due
  • Crusader Kings II: Conclave
  • Pillars of Eternity
  • Crusader Kings II: Way of Life
  • Crusader Kings II: Sword of Islam
  • Crusader Kings II: Sunset Invasion
  • Crusader Kings II: Sons of Abraham
  • Crusader Kings II: The Republic
  • Crusader Kings II: Rajas of India
  • Crusader Kings II: The Old Gods
  • Crusader Kings II: Legacy of Rome
  • Crusader Kings II: Charlemagne
Short summary of your issue
Mismatch and desync in multiplayer

Game Version
1.3.1. (Corvus)

What OS are you playing on?

What platform are you using?

Do you have mods enabled?

Have you tried verifying your game files (Steam only)?

How much "pain" is this causing you?

Please explain the issue you experienced in the most condensed way possible
Game stopping desync in CK3 multiplayer; mismatch in gamestates between the host and the hosted player. As a result, the game kicks the non-host player. The mismatches are different each time, e.g. "in provinces" or "random_count."

Error message given: "Out of synch: These players' gamestate differs from that of the Host, due to some miscalculation done by the game."

This problem happens almost immediately after loading a save from an on-going multiplayer campaign.

The problem began immediately after the 1.3.1. Corvus version update for CK3. Northern Lords DLC not purchased by any of the players.

Please explain how to reproduce the issue
The bug appears after reloading a save of an on-going campaign played by the same two people. It happens after at least over an hour (or maybe more) total time of gameplay in that particular campaign; if we start a new campaign and test a reload, everything seems fine, up until the 3rd or 4th time we play the campaign. This began after the corvus patch; neither of us who play have bought Northern Lords flavor pack.

Is there anything else you think could help us identify/replicate the issue?

I have attached a save game

Upload Attachment
File(s) attached


  • 20210401172850_1.jpg
    539,4 KB · Views: 0
  • oos_metadata_1.txt
    185 bytes · Views: 0
  • Chieftess_Yrsa_of_Vastergotland_911_02_06.ck3
    64,7 MB · Views: 0
Upvote 0

Duke Corvus

Community Ambassador
Feb 26, 2021
Hello, 4orchids!

Thank you for reporting this issue with your multiplayer campaigns! This issue is already in our bug database, and the information you provided will help us investigate it further.

Not open for further replies.