Using Maya 2020.4 and MtoA 4.1.1, when I export a single object using the 'export selection to USD' in the Arnold menu, the exported USD contains more than only the selected object.
Steps:
Create a polygonal torus
Select the torus
Arnold menu > Scene export > Export selection to USD
Create a StandIn
Load the USD file in the StandIn
Check the contents of the USD in the File Contents of the StandIn
-> it contains the torus, but also other things such as the defaultArnoldDriver, the persp camera,...
This seems like a bug to me, or is it not ?
Regards
Donat Van Bellinghen