Changing legend dynamically

Hi,

i'm using a chiclet slicer (with forced & single selection) to change the legend of one of my visuals.

For that case I have created two columns in my dataset. They look more or less like this:

I'm inserting the "Category" into the chiclet slicer and the "Value" into my visuals legend.

Now I am able to switch between two legend, which works extremly well!.

Unfortunately sometimes when I open my report online in my workspace, all entries will be shown in the legend, although just one of the two categories is selected in my chiclet slicer...

Is there a solution or at least an explanation for this behaviour?

Thanks in advance !!