3dtiles fleackering

Hello,

I tried to use cdb to 3dtiles and convert the Yemen cdb to 3tiles. But when i read it with cesiumJS this happens:
cesiumJS_Yemen.zip (4.6 MB)
Building are fleakering and the ground is weird too.

What could be causing the problem?

When I set maximumScreenSpaceError = 0, it’s better, but obviously, performance is not great. This could be the geometricError in the JSON from the conversion of CDB to 3D Tiles which has a problem. Are the Yemen 3D tiles used in Sandcastle available somewhere to check what might be different when I do the conversion myself?