Hello,
I'm loading buildings from an Arc GIS 3D Object Scene Layer, they work great but they don't cast shadows. Here is a screen comparing a standard UE cube (casting shadows correctly) besides the buildings layer which doesn't cast shadows:

I also tested with just a Directional Light and again no shadow casting from the Scene Layer, but it works for the UE Cube:

Here are the layer properties:

I'm using UE 5.0.3 with ArcGIS Maps SDK 1.0.0,
thank you