Filtering on Multi Cube is not working (BW 7.0 but 3.5 frontend)

Hello Experts,

we have created a multi cube with some queries. There is an info object which we are using to filtering. If we add three fixed values then it works. But if we add four values to restrict then it doesn't work.

We tried to activate the multi cube and to create the query again. But nothing worked.

Does any one has an idea?

Thanks in advance!

AK