Field Label not updating on Form in Landing Page
Issue
Field labels on a form have been updated, however, they are not displaying on the Marketo Landing Page, even though the Marketo Form and Marketo Landing Page has been approved since the update.
Solution
The reason why it appears the updated field labels are not displaying on the Marketo Landing Page is that the field labels that are being displayed are not the field labels that were edited. The field labels that are being displayed is what is defined in the Visibility Rules of the fields.
To ensure that the updated field label is displayed on the Marketo Landing Page, the field label in the Visibility Rules must also be updated
https://docs.marketo.com/display/public/DOCS/Dynamically+Toggle+Visibility+of+a+Form+Field