Tablix not showing on every page

Hello All,

I have a tablix on my RDLC report that I use as Header for the Report (although is not in the header since it does not allow a tablix to be added in there). Right underneath this tablix I have another one that actually displays the data pulled from SQL aligned with the one that I want to display in every page. I have set the properties on the Row Group, RepeatOnNewPage = True and KeepWithGroup = After as explained here: https://technet.microsoft.com/en-us/library/cc627566(v=sql.100).aspx. 

However, when I run the report, it only shows on the first page, I have tried to create a new tablix from scratch and still did not work. The tablix with the data displays on the other pages just fine, only the "Header" does not.

Any solution for this problem?

Thanks,

Leo