You are sharing a web scene that contains a multipatch layer. Multipatch layers can be published to Portal for ArcGIS 10.3.1 or later with ArcGIS Data Store. If you are sharing to Portal for ArcGIS 10.5 or later, ensure ArcGIS Data Store is configured as a tile cache data store. Multipatch layers cannot be published to Portal for ArcGIS with a geodatabase configured as the ArcGIS Server Managed Database and cannot be published as part of a web scene to ArcGIS Online.
- If you are sharing to ArcGIS Online, share the multipatch layer as a scene layer package and add the web scene layer to your scene before sharing.
- Alternatively, remove the multipatch layer from your scene.