I have multiple think-cell charts on a slide. When I try to align them, category or series labels are not aligned across the charts.
This is an architectural limitation of the current think-cell version. With some exceptions (e.g., set same scale for several charts), only one chart at a time is under think-cell's control.
Our future product, think-cell layout, will address this and will be able to automatically control the placement of all shapes on a slide. For the time being, in these cases do not use think-cell's automatic labels, but regular PowerPoint textboxes, which you can place manually.