Data not shown in visualization

Hi all,

I have a strange issue that I can't seem to figure out. Please see the following Image:

As you can see, I have a slicer. Based on the option I choose, the (clustered column) chart on the top-right is presented. If I click/select the black option in the visualization, you can see how it splits up in the bottom table visualization. So far so good.

Now, if I change the table visualization to a clustered column visualization (and nothing else), I get this:

So, as you can see, values just drop out of the visualization. The yellow section should be around 3300, but it just shows zero. I have the same issue with other graphical visualizations (Pie chart, Funnel, for example). The tables work, the Area Chart works, so it's not like the data isn't there.

Any suggestions on what might be wrong? Is there some kind of bug, or is it me?

Thanks!