Why raycast not work properly in Unity WebPlayer?

Hi, My project in the unity editor and standalone , the raycast hit fine all my gameobjects, but in the webplayer only hit somes. The Gameobjects are loaded from AssetBundles In the log of the webplayer the follow line appears multiples times: CollisionMeshData couldn't be created because the mesh has been marked as non-accessible (Filename: C:/BuildAgent/work/812c4f5049264fad/Runtime/Filters/Mesh/CollisionMeshData.cpp Line: 274) What is wrong?? Thanks in advance