Hi MichaelBranscomb
Thank you for your reply
Yes, I am using ArcGIS Runtime SDK for .NET version 100.12
My slpk file version is 1.7. I attached the metadata.json, 3dSceneLayer.json and nodepages/0.json files
my all slpk file contains one to two buildings
I Load the 50 slpk file at a time.
Can you share me your email, So I can forward my slpk file and other files
Thanks
KarthikS