diff -r 4c58b320056c -r 3360cc4c162d rust/hedgewars-server/src/handlers/common.rs
--- a/rust/hedgewars-server/src/handlers/common.rs	Tue Sep 27 15:10:52 2022 +0300
+++ b/rust/hedgewars-server/src/handlers/common.rs	Thu Sep 29 16:28:52 2022 +0200
@@ -571,7 +571,9 @@
                 let seed = thread_rng().gen_range(0..1_000_000_000).to_string();
                 let cfg = GameCfg::Seed(seed);
                 response.add(cfg.to_server_msg().send_all().in_room(room_id));
-                room_control.set_config(cfg);
+                room_control
+                    .set_config(cfg)
+                    .expect("Apparently, you cannot just set room config");
             }
             VoteType::HedgehogsPerTeam(number) => {
                 let nicks = room_control.set_hedgehogs_number(number);