Creating sub-prop from OBJ in XChange will then not rotate correctly in iClone.
Import any OBJ with an item that can be made into a sub-prop. Make it into a sub-prop (note: do NOT make a sub prop out of a sub prop -- THAT *will* rotate correct). Either export as iProp or bring into iClone and try and rotate said sub-prop. It will fail.
Note that the same procedure done in XChange 6 WILL work - which is to say, the exact same OBJ with a sub-prop created will rotate in iClone 7, but not one made in XChange 7. So there is something broken with sub-props in XChange 7.2.