luxgabu: I would need a side by side image of the original morph and the transferred morph to get an idea what might have gone wrong. Please note that the new feature only gets the morph values from the figure in the scene. You still have to inject morphs (like the custom head morph from Clown Clan) into GenX directly by using the INJ pose.
BurstAngel: GenX is a plugin for DAZ Studio. The GenX installer should propose the correct installation path (where DS is installed).
JOdel: GenX transfers morphs only, no magnets. I have not much experience with Poser magnets in DS, but it’s possible to load them directly in DS. To transfer magnets for V4 to Genesis, it would be possible to convert the magnets to morphs in Poser (e.g. with my free Spawn FBM script), then transfer them with GenX. But this might be some work, in particular if the magnets are controlled by the pose.
JOdel: GenX doesn’t support PMD morph injections. You may inject the morphs in Poser, then save the figure with the injected morphs as a new CR2 that can be loaded by GenX.
BurstAngel: The Gen3 add-ons would still work with the new version of GenX, but they have been updated as well to support the improved morph transfer.