[ASSETS] [OPEN SOURCE] Tanks, tracks and N-wheeled vehicles

This project is awesome, you make an awesome work maybe i’ve an issue…

When i launch the game in editor i’ve a Runtime Error:

[FONT=Lucida Console]Blueprint Runtime Error: Accessed None trying to read property TreadMaterialRight from function: ‘AnimateTreadsMaterial’ from node: Set Scalar Parameter Value in graph: AnimateTreadsMaterial in object: A_TrackedVehicle with description: Accessed None trying to read property TreadMaterialRight
Blueprint Runtime Error: Accessed None trying to read property TreadMaterialLeft from function: ‘AnimateTreadsMaterial’ from node: Set Scalar Parameter Value in graph: AnimateTreadsMaterial in object: A_TrackedVehicle with description: Accessed None trying to read property TreadMaterialLeft

I put a material into TreadsR and TreadsL but already the same issue. Can you help me to understand ?