Does not seem to be getting along with 1.6 smarter deconstruction and mining. Maybe an update borked your patch for the roof thing.

Error in static constructor of MultiReinstall.HarmonyPatches: System.TypeInitializationException: The type initializer for 'MultiReinstall.HarmonyPatches' threw an exception. ---> System.NullReferenceException: Null method for com.harmony.rimworld.multireinstall
[Ref FEF0CCF4]
at HarmonyLib.PatchProcessor.Patch () [0x0001d] in <8124cc12bdf242eab0a5f7e7edecf387>:0
at HarmonyLib.Harmony.Patch (System.Reflection.MethodBase original, HarmonyLib.HarmonyMethod prefix, HarmonyLib.HarmonyMethod postfix, HarmonyLib.HarmonyMethod transpiler, HarmonyLib.HarmonyMethod finalizer) [0x0002a] in <8124cc12bdf242eab0a5f7e7edecf387>:0
<0x1d364aabb20 + 0x001ba> <unknown method>
--- End of inner exception stack trace ---
[Ref 839C59F8]
(wrapper managed-to-native) System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(intptr)
at System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor (System.RuntimeTypeHandle type) [0x0002a] in <51fded79cd284d4d911c5949aff4cb21>:0
at Verse.StaticConstructorOnStartupUtility.CallAll () [0x00028] in <78bd3c897ba748f7a6d21cc5498c054e>:0
- POSTFIX LayeredDestruction.patch: Void LayeredDestruction.StaticConstructorOnStartupUtilityPatch:Postfix()
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
(wrapper dynamic-method)

Oh, this mod was compatible with 1.6 sooner than that mod. It's no surprise that the patch I wrote in the 1.5 era doesn't work. I fixed it with an update.

awesome thanks