Problem wih first lod level not writting tilles splitting stage

[AdrienHoule]

Hi, so I made a simple sphere with a material on blender, and subdivided it a lot.
The decimation level seems to be working, fine but when I reach the splitting stage, the first LOD of my object just writes no tiles, but the other ones are working just fine any idea why ?

If you want to reproduce here is the object
https://we.tl/t-vWIUdnNMr3