Here is the one I just got, first building I entered after today's update.
3/20/2012 8:03:51 AM
ProcessAssertionFailure while IsInAbilityDeserializationOrProcessing, Message:Argument is out of range.
Parameter name: index
at System.Collections.Generic.List`1[DungeonNode].RemoveAt (Int32 index) [0x00000] in <filename unknown>:0
at DungeonMetadata.CleanupAfterCreationOrDeserialization () [0x00000] in <filename unknown>:0
at GameEntityTypeStaticObjectSubData.CreateInteriorDungeon (Int64 ContainingGameEntityID, GameEntityType ContainingEntityType, .Region ParentRegion, .DungeonNode ParentDungeonNode) [0x00000] in <filename unknown>:0
at GameEntity.GetLinkedDungeonNodeBehindDoorSim (Int32 EntranceIndexBeingStoodAt, Boolean AllowDebugLogging, System.Int32& EntranceIndexToFind, .AbilityUseResult Result) [0x00000] in <filename unknown>:0
at Ability.TryExecuteInner (.GameEntity UsingEntity, .GameEntity TargetEntity, .QueuedAbilityUse QueuedAbilityUse, .AbilityUseResult Result) [0x00000] in <filename unknown>:0
UsingEntity:#17675 type:Dave2
TargetEntity:#26173 type:DesertBuilding2
QueuedAbilityUse.Ability.TypeData.Type:EnterLinkedChunkThroughDoor
QueuedAbilityUse.ExecutionContextChunkID:330
QueuedAbilityUse.ExecutionContextRegionID:16
QueuedAbilityUse.TargetGemSocketIndexOrEntranceIndex:0
QueuedAbilityUse.UsingEntityID:17675
UsingEntity.TypeData.Type:Dave2
at System.Environment.get_StackTrace()
at ArcenDebugging.ArcenDebugLog(System.String Message)
at ArcenDebugging.ProcessAssertionFailure(System.String Message)
at Ability.TryExecuteInner(.GameEntity UsingEntity, .GameEntity TargetEntity, .QueuedAbilityUse QueuedAbilityUse, .AbilityUseResult Result)
at Ability.TryExecute(.GameEntity UsingEntity, .GameEntity TargetEntity, .QueuedAbilityUse QueuedAbilityUse, .AbilityUseResult Result)
at QueuedAbilityUse.TryExecute()
at Game.ProcessSimStep()
at Game.RunNextCycle(Boolean DoRendering)
at Game.RunFrame()
at MainCameraLogic.Update()