ACS - Content fragment duplicates itself in the Email designer

Description description

Environment
Adobe Campaign Standard

Issue
When opening a delivery in the Email designer, which has a header included (content fragment), the header duplicates itself.

Resolution resolution

Solution
This issue can occur when a nested fragment is present in the HTML.

It can occur when creating a template, inserting a fragment, and changing the template flag into a fragment one, and this is not supported by the editor.

To solve this, the content fragment can be recreated from scratch, or the nested fragment can be removed manually.

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