iView issue in anonymous mode

Dear all,

we are using EP 7 with the possibility to change into different portal languages.

If I try to open an iView in anonymous mode and portal language English, no content is displayed. After that I change the portal language to German for example, the content of the same iView is displayed correctly. Afterwards I switch back to English then content is also displayed correctly. So the first time when I try to open the iView in English no content is diplayed.