Players disconnect on map change

TLDR: hosting a server on Linux, when the map changes most players are disconnected.

And if the players are not disconnected, the server sometimes just hangs on the map change.

I heard on Discord that this might be a bug that only appears when running on Wine. I promptly updated Wine to staging (currently on version 6.10), and the server to build 17623 from the dev branch, and… same problem.

Has anybody else run into this?