I am facing an issue where my feature service has two user-defined fields that are set to be non-editable, and I want to make them editable.
I have already updated the schema or feature class(DB Subtype group layer) and set those fields as editable in all layers, and saved the changes.

I have deleted and updated the feature layer several times, and republished it, but no matter what I do, those fields are not changing in the feature service.

I have restarted the ArcGIS server many times as well. If anyone has any idea/insights about this issue, it will be a great help.