Rigidbody moving on platforms

Hello. I have a foundation with rigidbody who move on ice (platforms). The ice is built from more mini platforms side by side. One platform means a "chunk" and platforms are instantiated and destroyed on a "chunk" script. The platforms have only box collider and the foundation with rigidbody have the collision detection on continuous dynamic. The problem is when I move the foundation with any rigidbody method sometimes the foundation is block on the margin of box collider from one of those mini platforms. Does not matter if the platform is moving slow or fast. Thanks!