Path collapses when in 3D world display

Dears,

We have a problem while displaying orbits during several hours on a 3D world map. This is not happening when the display is changed to 2D.
This Sandcastle example shows that when cesium is in 2D display all the path is correctly shown, but when cesium is in 3D display all the path seems to collapse around 1 orbit.

You can check that there is a funny thing: in the transition from 3D to 2D or viceversa cesium seems to correctly display the data in the 3D world.

Could you please check and tell us if this is an expected behaviour?

Thanks in advance for any feedback.
Regards.

Dears,

Any news on this error?
I post a screenshot here for better clarification of the issue:
image

This would be the expected behavior (and even shown by Cesium on the transition from 3D to 2D):
image

Thanks again for any feedback.
Regards.