System.NullReferenceException: Object reference not set to an instance of an object
at DepotAI.UpdateGuide (GuideController) <0x00019>
at (wrapper dynamic-method) BuildingManager.BuildingManager.SimulationStepImpl_Patch0 (BuildingManager,int) <0x00faf>
at SimulationManagerBase`2.SimulationStep (int) <0x0004c>
at BuildingManager.ISimulationManager.SimulationStep (int) <0x00024>
at SimulationManager.SimulationStep () <0x00693>
at SimulationManager.SimulationThread () <0x0018a>

Suffering above at dozen of seconds when even I do nothing.

System.NullReferenceException: Object reference not set to an instance of an object
at DepotAI.CheckBuildPosition (uint16,UnityEngine.Vector3+,single+,single,single,ColossalFramework.Math.Segment3+,int+,int+) <0x00055>
at (wrapper dynamic-method) BuildingTool.BuildingTool.SimulationStep_Patch0 (BuildingTool) <0x049f2>
at ToolManager.SimulationStepImpl (int) <0x0007f>

And suffering above *continuously* when I try to build this asset.
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2870843227
Do you know why these errors occur?
Even Google doesn't give me answer.

At least from my inspection this error is not caused by MOM or IPT2 fix.