I've had similar problems in the past with archicad 10 and maxonform, the views in 3d are normally fine but in plan the newly created object is not clearly shown. I was hoping this was just an older software issue and that newer versions of archicad with the exchange to c4d would do this better...hopefully somebody with a better understanding of the software will be able to answer this as I'd quite like to know how it can be resolved.
Many thanks.