Hog 4 Full Boar Bug?

Hi,
I can make this happen pretty regularly.
I loose the DMX processor and have to reboot when I update a cue.
Seems to happen on 1 list only. It happens when I use "update" or "record/merge". It doesn't matter if I use the merge hard key or the merge soft key.
I'm on a Hog 4 Full Boar running H3 software.

Any Ideas?