...stop the search of the window surrounding shape if its model have more than 10000 vertices.

Just to add to the confusion (my own probably). I put my pretty simple models into 4.2.b5. And got this result. I certainly cannot make heads or tails of it (perfectly normal for a lawyer).

sh3d_4_2_b5_cutouts.sh3d

The cutouts did not appear to be retained initially in the compressed file, but corrected itself once I moved any door.

ok