Setting filter via URL error

Hello,

I am doing some work on a batch file for getting exports of views..

I am using the URL to set the filters and the problem is that in one case when I put %20 for a space mark it puts a 0 and returns a dashboard with no data..

If anyone knows what this could all be about it would help me very much!

Couple of examples:

Returns me the valid dashboard: "?Key%20Figures=Audience%20(CUM)&Market=Europe"

Returns invalid dashboard: "??Key%20Figures=Reach%20(AVG)&Market=Latin%20America"