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I have a problem generating a report with repeating tablix inside header.

I would like to repeat a header row that contains another table on every new page. It is designed as such, because our report is dynamicaly generated and would want only 2 columns in header table that are static. Header table is resized on page width so there is no table header present on another page if columns break on another page.

Attached is a sample .rdl file. Open it in a designer and go into preview. There will be an error:

Object reference not set to an instance of an object.

If you can help, I would appretiate.

Thank you