diff --git a/src/openrct2/rct1/S4Importer.cpp b/src/openrct2/rct1/S4Importer.cpp
index 4e0cbcc887..29a0331006 100644
--- a/src/openrct2/rct1/S4Importer.cpp
+++ b/src/openrct2/rct1/S4Importer.cpp
@@ -541,7 +541,12 @@ private:
         }
 
         rct_ride_entry * rideEntry = get_ride_entry(dst->subtype);
-        Guard::Assert(rideEntry != nullptr && rideEntry != (rct_ride_entry*)-1);
+        // This can happen with hacked parks
+        if (rideEntry == nullptr || rideEntry == (rct_ride_entry*)-1)
+        {
+            dst = nullptr;
+            return;
+        }
 
         // Ride name
         dst->name = 0;
diff --git a/src/openrct2/ride/shops/facility.c b/src/openrct2/ride/shops/facility.c
index e8fa0cacb5..6e4bac4514 100644
--- a/src/openrct2/ride/shops/facility.c
+++ b/src/openrct2/ride/shops/facility.c
@@ -37,6 +37,12 @@ static void facility_paint_setup(uint8 rideIndex, uint8 trackSequence, uint8 dir
 	rct_ride_entry *rideEntry = get_ride_entry(ride->subtype);
 	rct_ride_entry_vehicle *firstVehicleEntry = &rideEntry->vehicles[0];
 
+	if (rideEntry == NULL || firstVehicleEntry == NULL)
+	{
+		log_error("Error drawing facility, rideEntry or firstVehicleEntry is NULL.");
+		return;
+	}
+
 	uint32 imageId = gTrackColours[SCHEME_TRACK];
 	imageId |= firstVehicleEntry->base_image_id;
 	imageId += (direction + 2) & 3;
diff --git a/src/openrct2/ride/shops/shop.c b/src/openrct2/ride/shops/shop.c
index 39845c7672..e5ad3f7e66 100644
--- a/src/openrct2/ride/shops/shop.c
+++ b/src/openrct2/ride/shops/shop.c
@@ -37,6 +37,12 @@ static void shop_paint_setup(uint8 rideIndex, uint8 trackSequence, uint8 directi
 	rct_ride_entry *rideEntry = get_ride_entry(ride->subtype);
 	rct_ride_entry_vehicle *firstVehicleEntry = &rideEntry->vehicles[0];
 
+	if (rideEntry == NULL || firstVehicleEntry == NULL)
+	{
+		log_error("Error drawing shop, rideEntry or firstVehicleEntry is NULL.");
+		return;
+	}
+
 	uint32 imageId = gTrackColours[SCHEME_TRACK];
 	if (imageId & 0x80000000) {
 		imageId &= 0x60FFFFFF;
diff --git a/src/openrct2/ride/track_design.c b/src/openrct2/ride/track_design.c
index 71412d336c..949d011ff5 100644
--- a/src/openrct2/ride/track_design.c
+++ b/src/openrct2/ride/track_design.c
@@ -188,7 +188,7 @@ static rct_track_td6 * track_design_open_from_td4(uint8 *src, size_t srcLength)
 	td6->version_and_colour_scheme = td4->version_and_colour_scheme;
 
 	// Vehicle colours
-	for (sint32 i = 0; i < 12; i++) {
+	for (sint32 i = 0; i < RCT1_MAX_VEHICLES_PER_RIDE; i++) {
 		td6->vehicle_colours[i].body_colour = rct1_get_colour(td4->vehicle_colours[i].body_colour);
 		td6->vehicle_colours[i].trim_colour = rct1_get_colour(td4->vehicle_colours[i].trim_colour);
 
@@ -198,7 +198,7 @@ static rct_track_td6 * track_design_open_from_td4(uint8 *src, size_t srcLength)
 		}
 	}
 	// Set remaining vehicles to same colour as first vehicle
-	for (sint32 i = 12; i < 32; i++) {
+	for (sint32 i = RCT1_MAX_VEHICLES_PER_RIDE; i < 32; i++) {
 		td6->vehicle_colours[i] = td6->vehicle_colours[0];
 	}
 	// Set additional colour to trim colour for all vehicles