This is what I get in console

Leaves building parts that cannot be removed.

Thank You!

Failed to execute OnFrame callback ()
   at Vector3 BaseEntity.PivotPoint()
   at BuildingBlock DecayEntity.GetNearbyBuildingBlock()
   at void ServerBuildingManager.CheckSplit(DecayEntity ent)
   at void DecayEntity.DoServerDestroy()
   at void StabilityEntity.DoServerDestroy()
   at void BaseNetworkable.DoEntityDestroy()
   at void Oxide.Plugins.CopyPaste.UndoLoop(HashSet<BaseEntity> entities, IPlayer player, int count)+(BaseEntity p) => { } [0] in /home/container/carbon/plugins/CopyPaste.cs:line 414
   at void System.Collections.Generic.List<BaseEntity>.ForEach(Action<BaseEntity> action)
   at void Oxide.Plugins.CopyPaste.UndoLoop(HashSet<BaseEntity> entities, IPlayer player, int count) in /home/container/carbon/plugins/CopyPaste.cs:line 387
   at void Oxide.Plugins.CopyPaste.UndoLoop(HashSet<BaseEntity> entities, IPlayer player, int count)+() => { } [1] in /home/container/carbon/plugins/CopyPaste.cs:line 425

Hey there, is this the full error? Does this happen every time on the same build you could possibly share?

I'll try to catch it again when it happens...