Issue Disabling gl_date Field for Specific Responsibilitie in Payables R12.2.9: invoice workbench.

I'm attempting to make the gl_date field non-updatable for certain responsibilities in the Payables Invoice Workbench using Forms Personalization. However, we are encountering the following error when setting the field as disabled:

FRM-41316: Cannot set Insert Allowed property of disabled item INV_SUM_FOLDER.GL_DATE.

Steps Taken:

• I applied a Forms Personalization rule setting the Enabled property to false.
• This triggers the above error.
• As an alternative, I tried setting Update Allowed to false. This partially works:
  • When opening the invoice form, the gl_date field is not updatable for the first record.
  • However, upon navigating to the next records, the field becomes editable again, which is not the desired behavior