Yes I have the board and I'm seeing it just with headphones also.
This was a perfectly working conductor for 3 shows now, using the old version of the firmware and control panel. Just ran my halloween one just fine. Reason I did the upgrade, I was seeing it stop a show after one sequence even though more were in the show.
Did the reflash and now its even worse, won't even connect anymore. Put back the old firmware and I'm back to it stopping after a sequence, but at least it connects. Going to go grab my dad's to see if I see the same stuff.