diff --git a/src/libseqarrange/src/seq_interface.cpp b/src/libseqarrange/src/seq_interface.cpp
index d70aac8fad..ad89b64f77 100644
--- a/src/libseqarrange/src/seq_interface.cpp
+++ b/src/libseqarrange/src/seq_interface.cpp
@@ -237,7 +237,7 @@ bool check_ScheduledObjectsForSequentialPrintability(const SolverConfiguration
 	    const auto& flat_index = flat_index_map.find(scheduled_object.id)->second;
 
 	    assert(!objects_to_print[flat_index].pgns_at_height.empty());
-	    
+
 	    if (!check_PolygonPositionWithinPlate(solver_configuration,
 						  SEQ_SLICER_SCALE_FACTOR,
 						  scheduled_object.x,
@@ -286,6 +286,7 @@ bool check_ScheduledObjectsForSequentialPrintability(const SolverConfiguration
 	    printf("Line check ...\n");
 	}
 	#endif
+	
 	if (!check_PolygonLineIntersections(dec_values_X,
 					    dec_values_Y,
 					    dec_values_T,
diff --git a/src/libseqarrange/src/seq_preprocess.cpp b/src/libseqarrange/src/seq_preprocess.cpp
index bbda8e7d7d..d96f3960aa 100644
--- a/src/libseqarrange/src/seq_preprocess.cpp
+++ b/src/libseqarrange/src/seq_preprocess.cpp
@@ -984,16 +984,18 @@ bool check_PolygonPositionWithinPlate(const SolverConfiguration &solver_configur
 	printf("Y: %d\n", solver_configuration.y_plate_bounding_box_size * scale_factor);
     }
     #endif
-	
-    if (x + polygon_box.min.x() < solver_configuration.plate_bounding_box.min.x() * scale_factor || x + polygon_box.max.x() > solver_configuration.plate_bounding_box.max.x() * scale_factor)
-    {
-	return false;
-    }
-    if (y + polygon_box.min.y() < solver_configuration.plate_bounding_box.min.y() * scale_factor || y + polygon_box.max.y() > solver_configuration.plate_bounding_box.max.y() * scale_factor)
-    {
-	return false;
-    }
 
+    if (solver_configuration.plate_bounding_polygon.points.size() == 0)
+    {
+	if (x + polygon_box.min.x() < solver_configuration.plate_bounding_box.min.x() * scale_factor || x + polygon_box.max.x() > solver_configuration.plate_bounding_box.max.x() * scale_factor)
+	{
+	    return false;
+	}
+	if (y + polygon_box.min.y() < solver_configuration.plate_bounding_box.min.y() * scale_factor || y + polygon_box.max.y() > solver_configuration.plate_bounding_box.max.y() * scale_factor)
+	{
+	    return false;
+	}
+    }
     else
     {
 	Polygon plate_polygon = solver_configuration.plate_bounding_polygon;