I'm sorry to bring this up again, as a dev I understand that this is not easy to solve. I want to report everything I know about this issue though.
When you host 7-15 elim games in a row, RAM usage keeps going up and up. Once it's using all of the RAM available, all of the players disconnect and sometimes the game crashes without an error message.
This only happens to the host. In fact, when I'm hosting and I see Cosmoteer consuming more than 4GB, I tell someone else to host, and RAM usage eventually gets back to normal levels (1.5GB) without any issues.
This is a recurrent problem to everyone with less than 16GB of RAM, and it's a well known problem in the elim pvp community.
I've tried a few things like disabling the gif recorder, changing graphic settings... Nothing works.