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Every time you edit the HTML of this form a new version is created and has to be activated before it is available. This was a user's data, whether Any data entered in a form, whether the form is in process or already archived, is always tied to the version of the version they initiatedform when it was created, never a newer version. From the Form Templates screen you can use the "View" button so see the version history of the form, preview any forms in any lifecycle state, and activate old versions.