Chapter Headings Issue

I have a book I loaded into Calibre from my Amazon library. When i put the book on my kobo using Calibre (KoboTouchExtended installed, set to 'Send books as kepubs') I notice the chapter headers are broken apart onto separate pages in the kobo.

For instance, looking at the book on Kindle the following is centered and bolded:
-----------------------------------
1
A Header
another minor header

text of the book
-----------------------------------

On the Kobo it becomes (where <next page> means swipe to next page on device):

1
<next page>
A Header
<next page>
another minor header

text of the book
------------------------------------

I hope my example makes sense, It does this for several that I have noticed.
There is a TON of great information here but I tried search and could not find help although I am sure it exists somewhere. I am hoping someone reading this sees it and has a easy answer.