Nav Mesh Bounds Volume Move on Simulation

Hi there,

i have a problem with the Nav Mesh Bounds Volume. The problem is that when i simulate or play my game the walkable green path of the mesh shifts and i dont know why. You can see one picture in the attachment in editor where the green path is perfectly on the castle and then the simulated version.

Do you have any idea what this could be? I have no logic in the BeginPlay event anywhere.

Thanks for your help!

Best regards