Error in Word when creating two columns

Hi, first of all, please excuse my bad English, it is not my primary language.

I have a document and I need to "transform" a long passage to 2 columns to save some space. When I do this, something happens with the page count, also in the Index showing page numbers automaticly.

The page that starts with the two columns get page number 1 instead of 5 or 6, and all the following pages with the two columns have this number and the first page after the two columns end gets number 2. I can not reproduce this error in Another document, But I do not understand why I get it in this.

Here is a Link to my OneDrive containing Steps recorder .zip to show you.

http://1drv.ms/1lqISNO

Regards

Martin