Egg Octree

Honestly I don’t know what’s going on there. My problem here is even more weird.
It’s my 97792 vertices, 97410 tris model, which is a single geom, a single primitive. After collecting the vertices & triangles, I stored the raw result to an .egg, but it couldn’t be loaded.
I’ve hunted it down and came up with this piece :
ynjh.panda3dprojects.com/debug_egg.zip
It’s the first 61448 triangles, but can’t be loaded. I doubt that 61448 is the triangle counts limit, but if I remove any of the , it’s loaded.
Does anyone know what’s wrong ?