We are post-Utility Network migration and have our UN feature services in an Experience Builder application that we are building for our Water Services supervisors. For the most part, majority of our functions are operational. However, with the Edit widget, the 'Create Feature' function is not showing our editable layers from the feature services.
We have a development and production environment that are mostly mirrors of each other. Production is the environment that is failing to allow us to create new features within Experience Builder. Our development environment is working perfectly.
For example;
Production:

Development:
We have verified that Enable Edit is 'on' at the feature service level in our Portal. Permissions are correct. We have mirrored our Production with Development.

The major difference is that Development is on version 12.1 while Production is on 12.0. We are experiencing this same scenario on all our Utility Network feature services in our Production Experience Builders.
Any advice, suggested solutions, or being recommended to another helpful source would be highly appreciated.