(bb2624736) Don't keep running the end round cinematic if the player leaves the game screen. Otherwise the player can, for example, quickly start a new single player round or switch to the sub editor, and have the game crash when then end round cinematic finishes and unloads the sub.

Barotrauma/BarotraumaClient/Source/Networking/GameClient.cs

@@ -1199,7 +1199,7 @@ namespace Barotrauma.Networking
                 {
                     secondsLeft -= CoroutineManager.UnscaledDeltaTime;
                     yield return CoroutineStatus.Running;
-                } while (secondsLeft > 0.0f);
+                } while (secondsLeft > 0.0f && Screen.Selected == GameMain.GameScreen);
             }
 
             Submarine.Unload();