Subform code does not appear to be generating properly when I try and edit the code.

Form  https://creator.zoho.com/essistmgmt/form/1713/scriptbuilder/#

Subform: INITIAL_SERVICES_AGREEMENT

Note, the green circle is active for PRODUCT_SERVICE_ID field but when I try and view the code, the code editor is blank. The behaviour is inconsistent since some fields show code and others don't. Other fields that show a green circle but display empty code are MANUFACTURER_ID, SUB_SELL_MRC, SUB_SELL_NRC, etc

Although the code is blank, when I view the history, I can see code. PRODUCT_SERVICE_ID is up to version 1.9 and MANUFACTURER_ID is up to 1.1.

Can you please investigate?

Note, the code is available for support editing.