It seems like you got the issue, where the node is not re-querying the actor and just goes with what it has in cache.
It should be better in 5.4. Also you’ll probably be able to directly query the mesh without storing it into a temporary variable as we will support struct extraction.
So if you have a StaticMesh component on the actor with PCG, you could do Get Actor Property (Self) → StaticMesh.StaticMesh (first is the name of your component, second is the name of the property on the component) and it will return you the Soft Object Path of the Mesh 
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