# Cluster billboards flickers when switch from 3D to 2D

**URL:** <https://community.cesium.com/t/cluster-billboards-flickers-when-switch-from-3d-to-2d/5993>\
**Category:** CesiumJS\
**Created:** [August 29, 2017, 1:31pm UTC](https://community.cesium.com/t/cluster-billboards-flickers-when-switch-from-3d-to-2d/5993 "2017-08-29T13:31:19Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Zhaokun\_Xue](https://avatars.discourse-cdn.com/v4/letter/z/7feea3/32.png) [@Zhaokun\_Xue](https://community.cesium.com/u/Zhaokun_Xue)\
**Post date:** [August 29, 2017, 1:31pm UTC](https://community.cesium.com/t/cluster-billboards-flickers-when-switch-from-3d-to-2d/5993/1 "2017-08-29T13:31:19Z")

</div>

**1. A concise explanation of the problem you’re experiencing.**

When I use the clustering feature and change the map from 3D to 2D, the clustering billboards just flicker couple times. That looks abnormal.

You can reproduce the issue from the clustering sandcastle.

> **[Cesium Sandcastle](https://sandcastle.cesium.com/?src=Clustering.html&label=Showcases)**
>
> The Cesium Sandcastle provides an interactive environment for testing Cesium code.

---

<div class="post-metadata">

**Author:** ![Gabby\_Getz](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/gabby_getz/32/7838_2.png) [@Gabby\_Getz](https://community.cesium.com/u/Gabby_Getz)\
**Post date:** [August 29, 2017, 8:17pm UTC](https://community.cesium.com/t/cluster-billboards-flickers-when-switch-from-3d-to-2d/5993/2 "2017-08-29T20:17:11Z")

</div>

Hi,

Thanks for the report! I opened a [GitHub issue](https://github.com/AnalyticalGraphicsInc/cesium/issues/5790) to track this.

Thanks,

Gabby