Thanks for your answer.
Domain-mapping will not solve my problems because the blog schould be integrated in an existing web structure.
Btw. I already made some other tests.
With deactivated permalink structure the blog post are displayed in Blog-ID2.
But categorys and pages are not displayed allready.
There might been some errors in the mapping of the permalink-structures?
I’m still understanding the problem better now.
Something in the scheduling engine has affected the permalink structure of the two affected blogs.
Workaround to fix the problem: reinitializing the permalink structure by change (save) and re-change it.
