SSRS only displaying first row

I found the reason. On the Report there is a property "ConsumeContainerWhitespace" which is by default set to false. After setting this to true I got the wanted behaviour. Still I'm not very excited by the design of this "feature" but if you feel that your report body dimensions are within the report dimensions and you still have to struggle with blank pages in the rendered reports, have a look at this property.

If you add a footer, it will appear on every page by default. There are two properties that can remove the footer from the First and/or Last page of the report. However, by default, the footer is active on all pages of a report.

So basically, if you add data to the footer, it should work.