@kidowmer I found the error. At 1.44 i folded inside the little triangle as you did, but I also folded inside the first isosceles trapezius and in the end I folded the second isosceles trapezius to the main diagonal, so that's why the distance between the triangles at 2:25 was greater. Now it's f...
This spinning top is too hard. especially the last part, i can't make the 2nd octagon. The author was drunk when created this model, i think..