B) It is becoming more crazy. When I dual box it can be that one of the 2 characters can not see the corpses while the other sees them clearly. But even when the corpses are clearly visible can they sometime not be looted. It appears to be a SoD issue.
I have the same issue. Sometimes corpse dont show up on some of my box, sometimes its invisible (still targettable).
If you cant target it, I made a hotkey for it...
/tar a
/loot
/tar a is because most mobs starts with A (modify as needed)
Hope that helps for now till a fix is in place