Hog4 PC 3.12 stopped outputting DMX

I have been an avid user of Hog4 PC also Hog2 and Hog3 PC since 2003 and have always been a big fan. But 3.11 had control problems, when 3.12 came out the control problems went away and now there is Hog4 PC 3.12 stopped outputting DMX all on 3 different computers.. Thoughts? Thank you!