Issue Summary

Whenever we try to edit or copy the page, the following error message is presented when loading it in edit mode:

"An error occurred while loading the editor. Your changes have been saved. Refresh the page and try again."

 
When trying to close the page without saving, another popup error is presented:

"Title is required
Add a title before publishing."
 

Error 1 — Rendering failure:

com.atlassian.confluence.content.render.xhtml.XhtmlException: RuntimeException occurred while performing an XHTML storage transformation (Expected ac:structured-macro end element but got: <ac:adf-fragment-mark>)

Source: com.atlassian.confluence.content.render.xhtml.DefaultRenderer.renderWithoutMetrics(DefaultRenderer.java:207)

 
Error 2 — Collab service reset failure :

Failure to perform collab service reset called via Confluence API TransformationException: Error converting storage to ADF, contentID: ContentId{id=xxxxxx}

Source: CollabContentController.lambda$resetCollabService$1(CollabContentController.java:169)

Root Cause

The page's storage format contains <ac:adf-fragment-mark> elements placed as direct children of <ac:structured-macro> elements — a position where the XML parser does not expect them. The parser encounters the fragment mark where it expects either </ac:structured-macro> (end tag), <ac:parameter>, or <ac:rich-text-body>.

Invalid Pattern Found in Storage

<ac:structured-macro ac:name="table-excerpt-include" ac:schema-version="1" ...>  
  <ac:parameter ac:name="name">xxxxx</ac:parameter>  
  <ac:parameter ac:name="pageId">xxx</ac:parameter>
  <!-- ... other parameters ... -->  
  <ac:adf-fragment-mark> <!-- ❌ INVALID POSITION -->  
     <ac:adf-fragment-mark-detail name="xxxx" local-id="e00e8e9a-..." />  
  </ac:adf-fragment-mark> 
</ac:structured-macro>

Steps to Reproduce

1. Open a page containing multiple Marketplace macros that use ac:adf-fragment-mark (e.g., Table Processor / Table Excerpt Include from the "Table Filter, Charts & Spreadsheets" app)
2. Edit the page in the Fabric editor
3. Attempt to publish

Expected Results

Page published without errors.

Actual Results

• Page fails with the XhtmlException above;

• Har file shows the request PUT /wiki/rest/collab/1.0/content/xxxxx/reset?behind=COLLAB] failing with Status Code 500 Internal Server Error and the response:

  { "error": "Expected ac:structured-macro end element but got: <ac:adf-fragment-mark>"}
  

   

• Log files shows the exception:

  com.atlassian.confluence.content.render.xhtml.XhtmlException: RuntimeException occurred while performing an XHTML storage transformation (Expected ac:structured-macro end element but got: <ac:adf-fragment-mark>) 

Workaround

Retrieve the page storage format via REST API, remove the invalid <ac:adf-fragment-mark>...</ac:adf-fragment-mark> elements from inside the affected macros, and PUT the corrected storage format back.