The chart tool often creates inaccurately sized shapes. This is especially noticeable in pie charts.
David Fox commented
I've noticed this problem on several occasions. It means you can't use the app at all since there's no way to correct the problem. Attached is the problem in action. Two sets of two pieces. Each set should have two pieces of the same size, but they're off. Especially the small pieces. Illustrator becomes useless for making graphs.
Wes Rand commented
Fantastic. Thank you!
we are able to reproduce the issue at our end and are looking into this.