Since version 1.0 was released earlier today, the server runs fine until one specific player joins. He's in my Discord server so he knows it's happening. It's not a malicious act that is causing this. I use Battlemetrics, which announces when a player joins. Whenever someone joins, I open the Steam overlay to see who joined. A few seconds after he joins, every time since 1.0 was released, the server crashes.

. He attempted to join another server and it timed out on him. That server probably also crashed.

In the attached log, you'll see him joining at this point:

18:36:51 [Login]: Adding player Survivor (189404022) to login queue at position 1