Dds or env light workflow

Hi folks, this is my workflow.

Model and animate in Maya.
Export babylon and run in sandbox.

I then want to change the env map from the default. I select the scene tab and add env map.

But I dont get any change in my lighting and the background stays as default.

If I load up the sample .glb scene file and then drag and drop a .dds file it does work, it seems i cant change it when using babylon export file.

What am I doing wrong?

Thanks for any help

Hey! this is because by default only gltf files receive an environment texture

Are you sure your .babylon file contains PBR material (the only ones that handle IBL)