Home Trending Latest threads New posts Developer diaries

In Review Cryptographic_ Exception Error that happened.

Jump to latest Follow Reply
  • We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
Cities: Skylines 2 3846 Cities Skylines 2: User Mods 948 Bug Reports 7922 Suggestions 1826 Official Information & Announcements 136 Analyze and Speculate 188
Show only dev responses
B

Brh2020

Recruit
5 Badges
Jul 11, 2025
8
3
  • Crusader Kings II
  • Hearts of Iron IV: Cadet
  • Hearts of Iron IV: Death or Dishonor
  • Hearts of Iron IV: Expansion Pass
  • Prison Architect

Information​

When reporting a crash, stability or performance problems, please ensure that you have the files ready for submission​

[CLICK] I understand

Required​

Summary​

Cryptographic_ Exception Error that happened.

Steps to reproduce​

This issue happened once a update rolled out where my mods were outdated which caused a Null Reference Exception so I deleted the mods and it changed to a Cryptographic_ Exception issue.

Expected Result​

I will load into the menu screen to selected my saves games and start playing.

Actual Result​

The game will give you a blue screen giving you a option to report this or exit to desktop as it crashes and you are unable to play.

Game Version​

1.3.3f1

Affected Feature​

  • Menu

Platform​

  • Steam

Save Game​

View attachment Barrier Island.cok

Crash Dump and Logs​

View attachment Report_2025-07-12_194911821.zip

Additional Information​

Screenshot or Video​

Screenshot 2025-07-12 194945.png

 
Upvote 0
First, let's eliminate mods, as until they are updated by their authors they can cause problems after any new game patch. Please add --disableModding to the game's Steam launch options. Then start a new test city - do you still get these crashes then?





If so, please try this: Rename the "Cities Skylines II" folder in your C:\Users\[user name]\AppData\LocalLow\Colossal Order (to whatever you want) and then start the game. To see the AppData folder you'll need to enable View Hidden Items in File Explorer.





The game will create a new clean CS2 folder and if that works it means that something in your original folder is corrupt and preventing the game from starting. Do NOT delete your original folder though as your saves are stored there and if you want to keep playing you'll need to move them over to the new fresh folder!





Let us know if that helps you. Good luck!
 
Can you please provide the player.log
Located in \AppData\LocalLow\Colossal Order\Cities Skylines II (To see the AppData folder you’ll need to enable View Hidden Items in File Explorer)
 
You see "Player" there? That's player.log - your Windows is set to hide file extensions.
 
You must log in or register to reply here.
Top Bottom
Back