Mudd and Steb had a ppo issue today but I will recount what I saw.
Steb stated he was able to do the build animation but the ppo did not render both graphically and physically (he built sandbags). I built a sandbag next to him it rendered in.
He told me he was unable to see it. I had him walk through it. He clipped right through it on my screen. When I walked into it, on his screen, he saw me just running in place. Mudd had a similar issue.