I tried making TheCube_7 use an external geometry as I thought perhaps internal/external geometry may play a part. But it doesn't seem to make any difference

{
version
    {
    number 10
    }
prop TheCube_7
    {
    storageOffset 0 0.3487 0
    objFileGeom 0 0 :Runtime:Libraries:props:TheCube_7.obj
    }
prop TheCube_7
    {
    name    TheCube_7

External Name = TheCube_1 (Internal Name = TheCube_7)
External Name = TheCube_2 (Internal Name = TheCube_8)
External Name = TheCube_3 (Internal Name = TheCube_9)

---

The 3Dcheapskate* occasionally posts sensible stuff. Usually by accident. And it usually uses Poser 11, with units set to inches. Except when it's using Poser 6 or PP2014, or when its units are set to PNU or something else.
*soon only to be available in two flavours -  DAZ and Renderosity