Why is a form field read-only at this workflow step?
A field can be editable everywhere, read-only everywhere, or editable only in selected workflow steps.
Open the form in Design Studio and check the field's Access and Workflow settings. Fields may be Editable, Read only, or Editable in selected steps.
For selected-step editing, the workflow and version must match the form's assigned workflow. If no exact version match exists, CMIForge shows the available workflow steps so the setup can still be corrected.