There seem to be some rendering issues with the conversion of 3D pie charts in a docx -> pdf conversion.
The key is superimposed over the chart, rather than being to the right.
Sample files attached.
Additionally, the key for the 2D pie chart shows a different layout after conversion from docx to pdf. In Q2 you can see that while all 5 items of the key are arranged vertically, the pdf has the second and third items in the key arranged horizontally.
The 2D pie chart is being rendered at a noticeably smaller size after document conversion.