Not able to export to excel

Hi, 

In my report I have a matrix and an interval slicer (made with DAX). 
From the service I would like to export the values of the matrix to excel and this works fine when the interval slicer is unchanged/reset.

However when I use the interval slicer then the export to excel does not work. 
I get the failure message that export to excel is not possible for the moment. I have tried several times over a long period of time so it does not seems like temporarily bug.

More people with same problem?