# Errors showing KML over 3D Tiles (Mobile view)

**URL:** <https://community.cesium.com/t/errors-showing-kml-over-3d-tiles-mobile-view/10845>\
**Category:** CesiumJS\
**Created:** [September 7, 2020, 2:28pm UTC](https://community.cesium.com/t/errors-showing-kml-over-3d-tiles-mobile-view/10845 "2020-09-07T14:28:38Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![tonycedeno](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/tonycedeno/32/1987_2.png) [@tonycedeno](https://community.cesium.com/u/tonycedeno)\
**Post date:** [September 7, 2020, 2:28pm UTC](https://community.cesium.com/t/errors-showing-kml-over-3d-tiles-mobile-view/10845/1 "2020-09-07T14:28:38Z")

</div>

Hello, we are facing problems on mobile with the KML visualization. We create a simple cesium story with two assets, a 3D Tile and a KML ([Story](https://cesium.com/ion/stories/viewer/?id=6a9f8776-4cb9-4622-93ba-f5ea5efbfa21)).

 ![image](https://global.discourse-cdn.com/cesium/original/2X/0/080ccac581283c6d4c17ade20740ef184caf6ccb.jpeg)

Then then we try to reproduce it in sandcastle ([SandCastle](https://sandcastle.cesium.com/index.html#c=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)).

On Desktop views there is no problems, problems appears on mobiles, when we put the camera very close, but only on SandCastle, cesium ion story looks ok.

 ![image](https://global.discourse-cdn.com/cesium/original/2X/3/3f328c3a4c4b429fb446ec0821b08cd143360c9e.jpeg) ![image](https://global.discourse-cdn.com/cesium/original/2X/2/27a24bc31f1e4cbb41f8f18708947d3c8673c39f.jpeg)

We try on different phones and obtains the same result. It’s possible that we need some parameter to set up the scene. Any help?

---

<div class="post-metadata">

**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [September 8, 2020, 5:59pm UTC](https://community.cesium.com/t/errors-showing-kml-over-3d-tiles-mobile-view/10845/2 "2020-09-08T17:59:20Z")

</div>

What phones have you tried this on? iOS, or Android, or both? What version of the OS and browser?

There was a recent iOS bug that causes similar artifacts that was just fixed and will be available in the next CesiumJS release on October 1st: [https://github.com/CesiumGS/cesium/issues/8953](https://github.com/CesiumGS/cesium/issues/8953).