diff -r 6da867fa5429 -r 3387a84ddaba src/linetypes/subfilereference.cpp
--- a/src/linetypes/subfilereference.cpp	Sun Jan 19 02:54:48 2020 +0200
+++ b/src/linetypes/subfilereference.cpp	Sun Jan 19 13:53:07 2020 +0200
@@ -57,9 +57,9 @@
 		polygons.reserve(polygons.size() + modelPolygons.size());
 		for (gl::Polygon polygon : modelPolygons)
 		{
-			for (int i = 0; i < polygon.numPolygonVertices(); i += 1)
+			for (unsigned int i = 0; i < polygon.numPolygonVertices(); i += 1)
 			{
-				polygon.vertices[i] = math::transform(polygon.vertices[1], this->transformation);
+				polygon.vertices[i] = math::transform(polygon.vertices[i], this->transformation);
 			}
 			if (polygon.color == colors::main)
 			{