I have a folder full of content (and I keep stumbling across more) that appears to be invisible (I've tested every piece in the folder) when I load it it into DAZ Studio 4.0.0.343. 

The Scene tab tells me that the figure has loaded, and a marker appears in the main viewing pane, but nothing else appears, no surfaces, nothing; it's like the bones are there but there's no skin covering them.

I moved on to importing the OBJ files, and those show up fine.  I'm quite baffled.

The really strange thing is that all this stuff worked fine when I was using DAZ Studio 2.3.

Any assistance is greatly appreciated.

that is happening to alot of stuff in DS4 regular too things that load fine and fully in DS2.3 and DS3.1A aswell.

If you reset your DS4 order the new version should be OK - it was a group naming issue (DS4 is fussier) and they've implemented a workaround, certainly DS Pro/Advanced was OK.

i know a cpl people with ds4 pro upgrade that say it's pretty glitchy too so i'll suggest to them to try the reset to newer version

Quote - If you reset your DS4 order the new version should be OK - it was a group naming issue (DS4 is fussier) and they've implemented a workaround, certainly DS Pro/Advanced was OK.

  And  all I need to do is install the new one over my existing one?

yeah that would be the thing you did it will uninstall it as it installs the newer version

Huzzah!

Problem solved!