When opening a form in default view, such as sc_req_item, fields are not being displayed. This also causes fields to not be available when when using the Configure > Form Layout
There may be non-global invalid form sections associated with the default view.
- Navigate to the sys_ui_form list view by typing sys_ui_form.list
- Filter by the table that is affected (for example sc_req_item).
- Open the affected view (Default). Add the 'Domain' column in the 'Form Sections' list.
- Identify the non-global form sections. Remove or move it to another view.