Hog 4 PC Replicate crash

Hi,
I am trying to repatch a show using
Hog 4 PC v3.3.1 (b1188).
I am using a backup of a recent show that worked.
If I select any fixture from the show and try to replicate Hog 4 PC crashes, I can't restart Hog 4 PC as it says another instance of
the program is previously running?
I'm trying to replicate either Robe MMX spots M1 or Robe 600 Wash M2 ?
Basically if I try an replicate any fixture Hog PC crashes?
I also got a .dmp file if that's of any help?
Any quick suggestions.

Edit : This came from a show at the weekend using a Fullboar 4 + Hog III USB wing

Thanks C