We have created a UN v6 using Pro 3.3.5 and then extending the latest Esri foundational data model. We are now attempting to publish that to an Enterprise 11.1 environment. However, we get a "Domain code is invalid error" regarding the BIGINTEGER domain value defined within the AP_Attribute_Types domain, which is applied to the "attribute_type" field of the B_NetworkAttribute table. However, we've confirmed the value is not actually being used by any records. Attempting to remove the value renders all feature classes unreadable. We've confirmed our asset package is UN v6 and all objectIDs are 32-bit.
I'm interested to hear your thoughts.
Thanks,
Mike