Triangles of two BVHmodels colliding

[hazidh]

Hello, I created BVHModel of two Boxes, the first Box is of size (2,2,2), the second Box is of size (1,1,1), and set Transform, tf1's translation to (0,0,0), tf2's translation to (0,0,1), and tf2's translation to (0, 0, 1). And use CollisionRequest col_req = new CollisionRequest (CollisionRequestFlag. CONTACT, Long. MAX_VALUE); But my results show that there is a part of the middle triangle mesh that does not exist in CollisionResult Contacts. Why is that? Is there any way to fix it?In the following screenshot, the orange one is the triangle mesh inside Contacts