Crash when using ceiling trim to clear meteor buildup (DigPlacer, construction dig)

November 14, 2025

Branch: Preview Branch

Version: Linux

Fixed

(Not tested without mods, the planetoid itself is from a mod, but gets vanilla oxylite, slimy, copper and ice showers; not sure which one this is, the incoming shower was not shown on the starmap)

Screenshot_20251114_231453.png.7d35b277f80c7dfbf2b79d95f89863ac.png

[21:57:21.179] [1] [ERROR] DigPlacer Exception in: (DigPlacer).ReachabilityMonitor.root.reachable. 
System.NullReferenceException: Object reference not set to an instance of an object
  at GameStateMachine`4+State+<>c__DisplayClass50_0[StateMachineType,StateMachineInstanceType,MasterType,DefType].<ToggleTag>b__1 (StateMachineInstanceType smi) [0x0000d] in <b528199c1fd84a39b3ce38acd7eb87b4>:0 
  at StateMachine`4+GenericInstance[StateMachineType,StateMachineInstanceType,MasterType,DefType].ExecuteActions (StateMachine`4+State[StateMachineType,StateMachineInstanceType,MasterType,DefType] state, System.Collections.Generic.List`1[T] actions) [0x0005e] in <b528199c1fd84a39b3ce38acd7eb87b4>:0 
Exception in: (DigPlacer).ReachabilityMonitor.root.reachable. 
System.NullReferenceException: Object reference not set to an instance of an object
  at GameStateMachine`4+State+<>c__DisplayClass50_0[StateMachineType,StateMachineInstanceType,MasterType,DefType].<ToggleTag>b__1 (StateMachineInstanceType smi) [0x0000d] in <b528199c1fd84a39b3ce38acd7eb87b4>:0 
  at StateMachine`4+GenericInstance[StateMachineType,StateMachineInstanceType,MasterType,DefType].ExecuteActions (StateMachine`4+State[StateMachineType,StateMachineInstanceType,MasterType,DefType] state, System.Collections.Generic.List`1[T] actions) [0x0005e] in <b528199c1fd84a39b3ce38acd7eb87b4>:0

U57 crashed soon after the first meteor shower (oxylite) came. This meteor-clearing setup has been in place for 1000s of cycles without issues under U56 and earlier.

I saw quite a few oxylite comets land and get dug, so I'm not sure if it's tied to the less-common snow comets which melt.

Crash-meteors.sav

Steps to Reproduce

Plan 3 layers of ceiling trims above bunker tiles and some water, on top of drywall. Wait for oxylite meteor shower.

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A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.