diff --git a/src/openrct2/peep/peep.c b/src/openrct2/peep/peep.c
index 99b36b2696..672b1c8685 100644
--- a/src/openrct2/peep/peep.c
+++ b/src/openrct2/peep/peep.c
@@ -6945,7 +6945,7 @@ void peep_update_crowd_noise()
         return;
 
     viewport = g_music_tracking_viewport;
-    if (viewport == (rct_viewport*)-1)
+    if (viewport == NULL || viewport == (rct_viewport*)-1)
         return;
 
     // Count the number of peeps visible
diff --git a/src/openrct2/rct2.c b/src/openrct2/rct2.c
index 4819822e9f..79d02b3ab7 100644
--- a/src/openrct2/rct2.c
+++ b/src/openrct2/rct2.c
@@ -329,6 +329,7 @@ bool rct2_open_file(const char *path)
 {
     char *extension = strrchr(path, '.');
     if (extension == NULL) {
+        title_load();
         return false;
     }
     extension++;
@@ -338,6 +339,14 @@ bool rct2_open_file(const char *path)
         if (ParkLoadResult_GetError(result) == PARK_LOAD_ERROR_OK) {
             ParkLoadResult_Delete(result);
             gFirstTimeSaving = false;
+            if (network_get_mode() == NETWORK_MODE_CLIENT) {
+                network_close();
+            }
+            game_load_init();
+            if (network_get_mode() == NETWORK_MODE_SERVER) {
+                network_send_map();
+            }
+            peep_update_names(gConfigGeneral.show_real_names_of_guests);
             return true;
         }
         else {
@@ -384,7 +393,7 @@ bool rct2_open_file(const char *path)
             return false;
         }
     }
-
+    title_load();
     return false;
 }
 
diff --git a/src/openrct2/ride/vehicle.c b/src/openrct2/ride/vehicle.c
index bff69a4b1a..06006c1b4a 100644
--- a/src/openrct2/ride/vehicle.c
+++ b/src/openrct2/ride/vehicle.c
@@ -802,7 +802,7 @@ void vehicle_sounds_update()
             }
         }
         g_music_tracking_viewport = viewport;
-        if (viewport != (rct_viewport*)-1) {
+        if (viewport != NULL && viewport != (rct_viewport*)-1) {
             if (window) {
                 gWindowAudioExclusive = window;
                 gVolumeAdjustZoom = 0;
diff --git a/src/openrct2/world/sprite.c b/src/openrct2/world/sprite.c
index e313a71106..29bdb90398 100644
--- a/src/openrct2/world/sprite.c
+++ b/src/openrct2/world/sprite.c
@@ -561,6 +561,9 @@ void sprite_move(sint16 x, sint16 y, sint16 z, rct_sprite *sprite)
             rct_sprite *sprite2 = get_sprite(*spriteIndex);
             while (sprite != sprite2) {
                 spriteIndex = &sprite2->unknown.next_in_quadrant;
+                if (*spriteIndex == SPRITE_INDEX_NULL) {
+                    break;
+                }
                 sprite2 = get_sprite(*spriteIndex);
             }
         }