Excel 2010 Pivot table conditional formatting lost on file re-open

I have this problem: Excel 2010 Pivot - Conditional Format - "All Cells Showing" - converts to range when file closed

Simply put my "All Cells Showing" conditional formatting rules converted to a range ($F$1:$H$55 etc) after saving and re-opening.

Unfortunately the fix in the link above is of no help.

I have even simplified this example as much as possible but the issue persists in two workbooks.

My workbook contains only the following:

• One datasource 
• One Pivot table
• Values by date (Columns) by category (Rows) in the tables
• Conditional formatting on "All Cells Showing category values"

I can recreate it from scratch and the problem always returns.

Also I've done this before with other customers and it worked, so is this a bug and is there a workaround or fix?

Thanks,

Martin Laukkanen
Nearbaseline blog - nearbaseline.com/blog
Bulk Edit and other Apps - nearbaseline.com/apps