Quote - > Quote - > Quote - Somtimes, when I click, the render in reality nothing happens.  It says loading materials, but nothing happens.

Usually there is something in the scene which prevents it from being exported to Lux. Try this: on the Output tab of Reality, switch to Lux Native instead of Binary PLY under Geometry format.

Reality wont even load.

When that happens, check  your task manage (ctrl+alt+del) to make sure there aren't two instance of daz studio running.  If there are, save your scene, close studio, make sure both instance close in your task manager, if not manually end any daz studio processes.  Then reopen studio, load your scene and reality should load just fine.  This has happened to me countless times and I've narrowed it down to studio 4.5 being wonky about ending processes after an error.