Can anyone assist me with dashboard graphs?

Hi there, I am trying to help a user who wants a dashboard summarising risks from multiple risk registers in one place, where the risk is over a given threshold. I have tried multiple ways of coming at it - a metrics sheet (too manual/complex for the user in question to update when new risk registers are added), and by generating a report from the multiple risk registers, grouping by risk registers (so she can drill down into more detail about which area has the most high level risks) and summarising with a count.

My issue comes with creating the chart on the dashboard, I can make it disregard the total risks and just show a bar chart of the high level risks categorised by the separate registers, but I can't get any category labels to show on the chart, rendering the chart useless to the end user.

Can anyone help?