TYPO3 Core

In a website (TYPO3 4.7.10) are three languages defined: german (0), english (1) and dutch (2).
I have create a news record (ext: news system 2.0.0, not tt_news) ONLY for dutch language, but in the list view, this article won't display if dutch is the selected language. In this case the news record in german language (standard) will display, but normal content elements are displayed correct.

This is my TypoScript for language configuration:

sys_language_overlay = 0

config {
sys_language_uid = 2
language = nl
locale_all = nl_NL.UTF8
htmlTag_langKey = nl
sys_language_mode = content_fallback;1,0
}

In the german mailing list I've get a tip, is possible that the problem is in context of extbase.

Sorry for my simple english. I hope you understand what I mean. The problem ist also postet in german here: http://www.typo3.net/forum/beitraege/mehrsprachigkeit/114652/

Is this a extbase problem? Who can I solve it?

Johannes.