The lod of all instances in HISM, act all like the same, the distance that only matter is the distance of the fist instance.
Everithing looks working fine with a mesh with more then 927 triangles, but with less that 927 the instances all depends from the first instance.
I have the same problem. Has the problem been solved?
You can’t select individual HISMs or ISMs - it selects the HISM/ISM component and all the instances.
Foliage tool has way to select individual ones by doing a line trace to find the instance index and just editing that - but it’s an extra layer.