Hi David,
Thank you for your interest in Syncfusion Products.
I am afraid that I was not able to reproduce the issue mentioned here. Please find the simple sample in the following link. When we click "Explode All" checkbox the Piechart gets exploded and the series text remains in the same position.
http://websamples.syncfusion.com/samples/Chart.Web/6.1.0.34/F72454/main.htmIf I have misunderstood your requirement, could you please explain in detail of your requirement or send me a simple sample that reproduces the issue so that I could sort out the cause of the issue and provide you a better solution?
Please let me know if any concerns.
Regards,
Fathima