Wall Worm Forums

I know,that for working hull i need set unique smoothing group(for that i press button "Process CM"),but it don`t working.
I get error: "WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
WARNING: Error with convex elements of mesh_0057_hull.smd, building single convex!!!!". I have video on youtube with all my steps,but i don`t know can i post links to videos on this forum.
( Sorry for my english)

3ds Max 2018
#(20000, 50, 0)
Microsoft Windows NT 6.2.9200.0
Wall Worm Version: 3.887

I send my scene with WWMT to you.

I download WW from "My downloads" (see screenshot).
I download WW yesterday.

When i use "Export QC+Model" i got this "There was a problem. Hit F11 for details"

Details:
Problems exporting mesh_1183: -- Runtime error: Attempt to access deleted scene object

After this problem,my object dissappear from my scene.

(Sorry for my english)