NullReferenceException: Object reference not set to an instance of an object

[Berkan5473]

I keep getting this error. This is the string:
(Filename: Line: -1)

NullReferenceException: Object reference not set to an instance of an object
at (wrapper dynamic-method) TreeInstance.TreeInstance.RenderInstance_Patch0 (RenderManager/CameraInfo,TreeInfo,UnityEngine.Vector3,single,single,UnityEngine.Vector4,bool) <0x00934>
at BuildingAI.RenderProps (RenderManager/CameraInfo,uint16,Building&,int,RenderManager/Instance&,bool,bool,bool) <0x01f48>
at BuildingAI.RenderProps (RenderManager/CameraInfo,uint16,Building&,int,RenderManager/Instance&,bool,bool) <0x0006d>
at BuildingAI.RenderInstance (RenderManager/CameraInfo,uint16,Building&,int,RenderManager/Instance&) <0x0005b>
at CommonBuildingAI.RenderInstance (RenderManager/CameraInfo,uint16,Building&,int,RenderManager/Instance&) <0x05291>
at Building.RenderInstance (RenderManager/CameraInfo,uint16,int,BuildingInfo,RenderManager/Instance&) <0x000bf>
at Building.RenderInstance (RenderManager/CameraInfo,uint16,int) <0x001f1>
at BuildingManager.EndRenderingImpl (RenderManager/CameraInfo) <0x001e6>
at SimulationManagerBase`2.EndRendering (RenderManager/CameraInfo) <0x0002a>
at BuildingManager.IRenderableManager.EndRendering (RenderManager/CameraInfo) <0x00024>
at RenderManager.FpsBoosterLateUpdate () <0x00a32>
at BehaviourUpdater.Updater.LateUpdate () <0x00592>

The issue appeared out of nowhere. In the loading screen mod, I unsubscribed all assets which showed up under "Assets that failed to load" and under "Assets errors". I reset my more vehicle options settings and despawned all traffic with TME through both the shortcut and the maintenance menu. The issue only pops up when simulation is active.

Anyone any idea for fixes?

 

[AndrewT]

Please check your mods against this list:

[Cities Skylines] Broken & Incompatible Mods - Patch 1.17.1-f4

docs.google.com

Make sure to check the tab "Broken"

If you still get this problem after removing or replacing any bad ones, attach here the game's log file:
…\Steam\steamapps\common\CitiesSkylines\CitiesData\output_log.txt

AND the affected saved game file. Thanks.