Errors showing KML over 3D Tiles (Mobile view)

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).

Then then we try to reproduce it in sandcastle (SandCastle).

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.

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?

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: