Crash while welding projected blocks with a ShipWelder

System.NullReferenceException: Object reference not set to an instance of an object.
at Sandbox.Game.Entities.Blocks.MyProjectorBase.BuildInternal(Vector3I cubeBlockPosition, Int64 owner, Int64 builder, Boolean requestInstant, Int64 builtBy)
at Sandbox.Game.Entities.Blocks.MyProjectorBase.BuildInternal<>VRageMath_Vector3I#System_Int64#System_Int64#System_Boolean#System_Int64.Invoke(MyProjectorBase& this, Vector3I& cubeBlockPosition, Int64& owner, Int64& builder, Boolean& requestInstant, Int64& builtBy, DBNull& arg6)
at VRage.Network.MyReplicationLayerBase.InvokeLocally[T1,T2,T3,T4,T5,T6,T7](CallSite`7 site, T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7)
at VRage.Network.MyReplicationLayer.DispatchEvent[T1,T2,T3,T4,T5,T6,T7,T8](CallSite callSite, EndpointId recipient, Nullable`1 position, T1& arg1, T2& arg2, T3& arg3, T4& arg4, T5& arg5, T6& arg6, T7& arg7, T8& arg8)
at VRage.Network.MyReplicationLayerBase.RaiseEvent[T1,T2,T3,T4,T5,T6,T7](T1 arg1, T7 arg7, Func`2 action, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, EndpointId endpointId, Nullable`1 position)
at Sandbox.Game.Entities.Blocks.MyProjectorBase.Build(MySlimBlock cubeBlock, Int64 owner, Int64 builder, Boolean requestInstant, Int64 builtBy)
at SpaceEngineers.Game.Entities.Blocks.MyShipWelder.<>c__DisplayClass27_0.<Activate>b__0()
at Sandbox.MySandboxGame.ProcessInvoke()

First time found 2020-02-05, but actually, it is time I started record crashes.

If you try/catch/throw it with extra info, would be cool.