Hi Kelly,
I can't share it unfortunately, as the test version is internal only.
In my case, I have a custom Web AppBuilder app developed with dev edition and hosted locally. The symbology is defined in the webmap, based on an attribute, with values of either 'Yes' or 'No'. So there are 2 possible symbols. I have extended the 'Edit' widget with some custom functionality, but generally it works like the OOB version. When they open the edit widget, or from a popup dropdown menu, click 'Edit Feature', the symbology reverts back to the map service symbology and stays like that as long as the edit widget is open.
You can actually see this behavior in a webmap though. Just add a simple feature service or feature layer to a webmap and change the style. In the webmap, when you click the edit button, you'll see the symbols change back to the service symbology.
It's pretty confusing for end users.
Thanks