Customers have complex pages built in the legacy editor that rely on deeply nested structures, such as:

• Sections / columns

• Panels

• Expand / Expandable content

• Code Block / other content macros

• Other layout or formatting macros

In the new editor, the nesting depth and allowed macro combinations are more constrained. As a result, when migrating or editing these pages, content can be:

• Re-ordered

• Pulled out of its original parent container

• Flattened or partially “broken”

• Hard or impossible to reproduce using the new editor’s constraints

This is particularly visible during legacy -> new editor conversion.