Sergey,
We went to beta and are getting lots of bug which appear related to this issue. For example, some rendering is now generating blank pages or an exported pdf file has blank pages it it.
For the rendering issue, turning cacheToDisk off ( i.e. false) appears to fix the issue.
I have not tested against SP 1, but we are seeing this issue in SP2 and Active reports 8.
Can we raise the priority on this bug?
Thanks,
Steve