Just started doing some destructables for an UDK tutorial and found that if the mesh size is big then the fracture doesn’t work in the F12 playground
eg i make a box 64x64x64 units this will fracture but not re-act in playground or in UDK
eg i make a box 1x1x1 units this will fracture and works in playground and in UDK
as you can imagine having meshes the size of 1 in a game doesn’t go very well as you will have to constantly scale the mesh every time you place it
btw the fracture map works fine with a large mesh !!!