The RadzenChart legend overlaps the category axis labels when the bottom legend spans more than one line:
This issue is easy to reproduce using the following code (based on the Chart > Legend example from the Radzen demo page, by duplicating the series several times and assigning long titles to them):
I expected the chart area to automatically resize when the legend requires additional space.
Unfortunately fixing such overlaps isn't trivial. Instead we recommend using a different legend position or shortening the titles. We don't plan on fixing that.