# XY Chart doesn't clear dataset

**URL:** <https://forum.inductiveautomation.com/t/xy-chart-doesnt-clear-dataset/49474>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [August 2, 2021, 8:20pm UTC](https://forum.inductiveautomation.com/t/xy-chart-doesnt-clear-dataset/49474 "2021-08-02T20:20:40Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![tim.schultz](https://avatars.discourse-cdn.com/v4/letter/t/71e660/32.png) [@tim.schultz](https://forum.inductiveautomation.com/u/tim.schultz)\
**Post date:** [August 2, 2021, 8:20pm UTC](https://forum.inductiveautomation.com/t/xy-chart-doesnt-clear-dataset/49474/1 "2021-08-02T20:20:40Z")

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Using Ignition 8.1.7, in Perspective. I'm using an XY chart with a dataset bound to a named query that refreshes every 10 seconds. After a couple of refreshes, my chart looks wonky:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/4/d4797f1b9198e4378ab346e6787f000335a50c89.png)

Any suggestions?

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