I used the latest SL viewer to upload a mesh containing three materials and deleted the place holders from the lowest LODs in blender. This would have usually thrown an error but it's been reported that meshes can now be uploaded this way. I applied the materials to my mesh faces and logged out. I logged back in and the faces were all showing one of the materials rather than those alocated. They also look this way with the latest firestorm viewer. I tried again today thinking it may have been lag, but it happened again, the meshes looked fine at first and when I teleported out and in again, they were showing incorrrect materials.