Bug in EdgeAttr component of Grasshopper

Sofistik 2025-2, Rhino 8
As shown in the image below, the edge thickness of both slab are grouped into one tree structure. The thickness of edge 3 and 1 of the right slab should be 1.5 and 0.75 respectively. But result are 0.5 and 1.0 respectively, which is the same as those in the left slab.

Then I have to use “non-tree structure” as shown in the image below. The result is correct.

It looks like the EdgeAttr can’t process tree data structure correctly.
1.gh (16.6 KB)