Steps to reproduce

1. Create a blank page;
2. Insert a table;
3. Add two or more macros to a Header cell;
4. Save the page - It displays the table correctly;
5. Edit the page again;

Expected behavior
The same table is there, ready to be edited.

Actual Behavior
The header pops out everything below the first macro and removes all subsequent cells.

Workaround

Remove the headers before saving to avoid loosing the table formatting.

• If the page is already affected, copy the page storage format in view mode, then use Source Editor to paste it in edit mode; or
• Disable Collaborative Editing:
  General Configuration > Collaborative Editing > Change Mode > OFF > Change

Notes:

• This does not seem to affect drafts.