Not to be overly pessimistic here, but you guys have been “aware of this issue” since the game launched a year and a half ago. Not exaggerating. Could you discover if there any plans to actually fix it?
And to point out, this is purely a client-side bug. The bodies are there, as far as the server is concerned. And if you run far enough away, and then come back, you’ll often see them standing up or floating (dead) with their arms spread out in the default model pose.