@AustinoInc This mod did not crash. LSM simply echoes errors logged in your output_log.txt. The error, which is game-breaking, comes from the simulation thread while decoding the save game file.

PathManager refers to road-like structures. I'm guessing you used some road/track-related mod that is no longer compatible with the game.

In your output_log.txt, the lines after EndDeserialize may show which mod is behind this (if that mod is still enabled now).

Thanks for the feedback! I will try to find out what is causing the issue using your instructions provided. Hopefully then I can diagnose and resolve the problem.

Thanks for making something so useful. :)

I have scratched my head and scanned output_log.txt (found in Cities_Skylines\Cities_Data) for 'EndDeserialize' (and even 'end) but there are no matches. Any ideas why this might be? I have also used a Mod Compatibility Checker to remove any mods that could/were causing problems.

"Simulation error" is also a good search string for that error.

If the game crashes abruptly then the log file may be incomplete. Those cases can usually be recognized by looking at the end of the file.

No results for "Simulation error" either in the log file. I really am stumped; I might just do a fresh install though I fear loading the save without the mods that were used might cause more errors.
The game just hangs rather than crashes, it still runs with the cursor and the sounds.
I might be able to send you the log file if you think you might be able to look through it yourself.

Looking through the file manually (without searching) there is a lot of errors like this in succession with different values, this is the first one:

(Filename: Line: 504)

d3d11: failed to create 2D texture shader resource view id=40174 [D3D error was 80070057]

-then looking towards the end of the file (last 100 lines) there are some errors like this:

NullReferenceException: Object reference not set to an instance of an object
at PublicTransportDetailPanel.RefreshLines () [0x00000] in <filename unknown>:0
at PublicTransportDetailPanel.OnLevelLoaded (UpdateMode mode) [0x00000] in <filename unknown>:0
at (wrapper delegate-invoke) LoadingManager/LevelLoadedHandler:invoke_void__this___SimulationManager/UpdateMode (SimulationManager/UpdateMode)

-

NullReferenceException: Object reference not set to an instance of an object
at Building.PlayAudio (.ListenerInfo listenerInfo, UInt16 buildingID) [0x00000] in <filename unknown>:0
at BuildingManager.PlayAudioImpl (.ListenerInfo listenerInfo) [0x00000] in <filename unknown>:0
at SimulationManagerBase`2[Manager,Properties].PlayAudio (.ListenerInfo listenerInfo) [0x00000] in <filename unknown>:0
at BuildingManager.IAudibleManager.PlayAudio (.ListenerInfo listenerInfo) [0x00000] in <filename unknown>:0
at AudioManager.LateUpdate () [0x00000] in <filename unknown>:0


Sorry for the massive information dump and once again I really appreciate your help! If you have any ideas it would be a life saver because I have none myself and I wish to play on the save again soon. If not I still applaud you for being clever enough and willing to help others on the forum!

If you put the log online (pastebin or similar), I'll take a look.