My friend, cousin, and I are all on wired connections and have suitable internet connections beyond 80Mbit. We do not experience any desync or other strange type of lag situations when the person is invisible. I've ruled out the new axe position since when my cousin became invisible, he was a fresh spawn with no gear. Maybe there is a connection here with how some zombies can become invisible so if the community can report their experience with this bug, the source of the problem will become easier to detect.