Scaffolding gets broken by Space Export

When I export a page with the "Space Export" function, all scaffolding macros on that page get broken. Instead, there are error messages like "Error formatting macro: text-data: java.lang.NullPointerException". This happens no matter if I export the pages to pdf or html format.

But on the other hand, when I export a single page with the "normal" pdf-export, then everything works fine.

I'm running Confluence 3.0.0_01