- SW: when an actor is killed, all attached ambient sounds must be deleted.

Not only did the sound not stop but what happened here was very much undefined behavior as the ambient sound retained its pointer to now undefined memory.

source/games/sw/src/sounds.cpp

@@ -733,6 +733,17 @@ void DeleteNoSoundOwner(DSWActor* actor)
             }
             return false;
         });
+
+    // also delete all ambients attached to this actor.
+    for (int i = ambients.Size() - 1; i >= 0; i--)
+    {
+        auto amb = ambients[i];
+        if (amb->spot == actor)
+        {
+            soundEngine->StopSound(SOURCE_Ambient, amb, -1);
+            ambients.Delete(i);
+        }
+    }
 }
 
 //==========================================================================