I've been having great trouble with 3DS s in the more recent updates of DBPro. Only about half of the s appeared and PERFORM CHECKLIST FOR LIMBS showed that only about half the object's limbs seemed to exist.
I've now found the problem. There were limbs in the with no faces assigned to them. This was obviously a mistake but earlier versions of DBPro coped with it fine. If I converted them to .X format, sometimes my code would crash on loading and sometimes when the objects were CLONEd.
So if anyone out there has this problem too, just delete all of the "empty" limbs using your ler.
AMD Athlon 1600+, 512MB, GeForce FX5500