UPDATE 18/05/2016 8.24pm: The Dark Souls 3 multiplayer patch has been redeployed. Early reports suggest that the freezing issues have been ironed out.
ORIGINAL STORY 16/05/2016 5.28pm: Dark Souls 3 developer From Software recently released a PC patch to fix some of the game's PvP glitches. Unfortunately, it made things worse by causing the game to freeze for a lot of folks. As such, From just removed the update.
"The patch has been removed temporarily to fix the freeze issues. We hope to reinstate the patch ASAP," the developer explained on the Steam forums. "If you fall victim to one of the bugs previously fixed, don't worry, you won't be penalised. We will keep you posted as soon as we have more info. Thank you for your understanding."
The original patch was meant to fix a bug in which players would be sent as visitors to their own world, spawn at the safe hub of Firelink Shrine, or get transformed into a bipedal dragon (which usually requires an item). Worse, some players getting killed by hackers were then flagged as cheaters, even if they did nothing wrong.
From said in the original patch update that its Server Team would analyse all accounts accused of cheating before issuing a punishment. "Players that fall victim of online issues will not be penalised if they are innocent," From clarified.
In the meantime, Dark Souls 3 PC players will have to wait for a new fix. But at least they won't have to deal with this sort of thing anymore: