Hi,
Are you aware of any bug related to randomly unchecked "Task list" elements in the Atlassian Confluence 7.4.1 (server) version? I'm using those as a checkboxes in my testplan template and noticed that sometimes task list elements are getting unchecked after clicking "Edit page" button. I do not see any root cause of that - checked multiple browsers on different computers and what is more strange - not always the same "checkboxes" are impacted by this random change (the same within a page, but random when comparing multiple testplans).
I verified a storage format source, all task-ids are unique within a page. I didint find also any meaningful topic on the community.