How to handle overlapping tiles with SampleHeightMostDetailed()?

Cesium for Unity
1

Hi,

Unity 2023.2.20f1 Cesium 1.14.1

On position Lat: 51.5095632128539 Lon: -0.117684107968717 which is the London Waterloo Bridge.

Using Google 3D tiles, I call SampleHeightMostDetailed() and I get the height of the water under the bridge, instead of the height of that position on the bridge. I presume the calculation stops when for this Lat, Lon position there is a hit with a polygon.
This position has overlapping tiles, and unfortunately it looks like it picks the height of the underlying Tile.

Am I correct ? If yes, how could I get the other tiles heights for the same geo position ?

Thanks!