You said using two super widgets at the same time has no output but is found byt the Hog iPC....
On your Hog iPC you should have the first 4 universes connected to the internal super widget by default when using Hog 3PC or Hog 2PC. Then if you connect an additional Super Widget you can output 3 more universes on Hog 2PC or 4 more with Hog 3PC. If you connect 2 Super Widgets to a Hog iPC, only one will function.
If you are using Hog 2PC stand alone, then you should be able to connect two super widgets and get DMX output on 7 universes.
Please clarify what your exact connection and software setup is as it is not clear by your first post.
Latest version 3.4.2.28 should be like you explained but isn't. 2 Superwidgets found but only one got DMX Output the other has no Signal Output... Running HOG PC 2
HMM... will each widget work on their own if only one is connected at a time? Do you have any other USB devices or any other information you can provide?
In the Wholehog 2 patch window have you "overdriven" your outputs 2-4 and patched fixtures to them? This is required to gain output to the last 3 universes of the 7.