Hello. I have recently altered my Urban model by attempting to upload a new hosted .slpk as my existing buildings layers for schematic visualization & satellite visualization, yet after assigning the .slpk it will not appear in Urban (this .slpk is accessible for all members of my organization.)
Here is a screenshot of where my .slpk should be generated.

When I open this hosted .slpk in Scene Viewer and ArcGIS Pro the .slpk is able to displays with no problems, however each platform displays a different error message that may indicate as to what is causing this problem in Urban.
Scene Viewer: 
ArcGIS Pro: (The .slpk generated after this screenshot was taken)

If anyone has had experience with a similar error, please let me know!
Thanks