Hi.
Our ArcGIS server 10.3.1 uses WebTier Authentication and it is playing well with the latest versions of 2d online maps and webappbuilder.
We are now trying to create 3D scenes from custom LiDAR surfaces published from ArcGIS server and it seems AGOL 3D scenes fail to load layers from WebTier Authentication.
The same thing happens also with 3D WebAppbuilder Apps
Thanks.
Please contact Esri Technical Support to have them look into this issue further.