cue updating issues

Here's what I have.

Show originally programmed in Hog 3.2.6. Using Hog 4 PC. Hog 3 show was merged into a new Hog 4 show.

Fixture schedule is nearly identical as Hog 3 file. Cloned profile fixtures.

This happens on any cue I attempt to edit:

Open cue 1
make a timing change to pan/tilt
"update"

When the cue updates, every Mac Aura in the rig loses all parameter information (goes open white and 50/50 pan and tilt). I also lose timing information. If I open the the cue again I see that the programmed information is simply gone.

I can merge new parameters just fine by either recording to the cue or pressing update.

I have tried this on two separate machines. One running windows 7 and one running windows 8.

My somewhat reliable work around is to touch all information in the cue before making my changes. This of course is not great, but it works. I say somewhat reliable because sometimes timing still gets messed up.

There is no issue with new cues recorded in the show file.

Thanks
Chris