Ok... this time it was a little different (possibly an Overwatch issue?).
My people laying in ambush, testing Overwatch.
Soldier comes around the corner. Elena is set to Lethal, everyone else is set to subdue.
Elena opens fire when he clears the corner. She hits him for 40.
Then the Cop fires twice and hits him twice for 24 each.
Then the Survivalist forgets to fall over. In forgetting to fall over, he's forgotten to end his turn.
I don't know if it's a problem with the Overwatch or the combination of lethal versus non-lethal or just the same issue as above (even though it wasn't my turn next).