Confluence Page Layout Duplicated

I had a situation where after some Cut/Copy/Paste operations between panels, headings etc. The Confluence Page Layout Feature got me stuck.

What seem to have happened is that the "Layout" was actually copied and duplicated. That includes all the content in the layout boxes.

So what I now have is a double 2 column layout, and I can't fix it by changing the layout as it won't touch the "FUBAR" columns.

Edit: By setting the layout to full page I could revert the damage, but really painful process as it duplicates content and you have to get it places correctly again.

I Even managed to crash the editor in the end trying to fix it.

Edit again: It may seem fixed doing the above, but it seems the page keeps suffering from some fallout of the issue.