diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
index 3dd26747b..1388de44a 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
@@ -156,9 +156,9 @@ public class MeshHelper extends AbstractBlenderHelper {
 				materialWithoutTextures = pImage.isNull();
 				// uvs always must be added wheater we have texture or not
 				uvs = (DynamicArray<Number>) mtFace.getFieldValue("uv");
-				uvCoordinates.add(new Vector2f(uvs.get(0, 0).floatValue(), 1.0f - uvs.get(0, 1).floatValue()));
-				uvCoordinates.add(new Vector2f(uvs.get(1, 0).floatValue(), 1.0f - uvs.get(1, 1).floatValue()));
-				uvCoordinates.add(new Vector2f(uvs.get(2, 0).floatValue(), 1.0f - uvs.get(2, 1).floatValue()));
+				uvCoordinates.add(new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue()));
+				uvCoordinates.add(new Vector2f(uvs.get(1, 0).floatValue(), uvs.get(1, 1).floatValue()));
+				uvCoordinates.add(new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue()));
 			}
 			int matNr = ((Number) mFace.getFieldValue("mat_nr")).intValue();
 			Integer materialNumber = Integer.valueOf(materialWithoutTextures ? -1 * matNr - 1 : matNr);
@@ -202,9 +202,9 @@ public class MeshHelper extends AbstractBlenderHelper {
 
 			if (v4 > 0) {
 				if (uvs != null) {
-					uvCoordinates.add(new Vector2f(uvs.get(0, 0).floatValue(), 1.0f - uvs.get(0, 1).floatValue()));
-					uvCoordinates.add(new Vector2f(uvs.get(2, 0).floatValue(), 1.0f - uvs.get(2, 1).floatValue()));
-					uvCoordinates.add(new Vector2f(uvs.get(3, 0).floatValue(), 1.0f - uvs.get(3, 1).floatValue()));
+					uvCoordinates.add(new Vector2f(uvs.get(0, 0).floatValue(), uvs.get(0, 1).floatValue()));
+					uvCoordinates.add(new Vector2f(uvs.get(2, 0).floatValue(), uvs.get(2, 1).floatValue()));
+					uvCoordinates.add(new Vector2f(uvs.get(3, 0).floatValue(), uvs.get(3, 1).floatValue()));
 				}
 				this.appendVertexReference(v1, vertexList.size(), vertexReferenceMap);
 				indexList.add(vertexList.size());
@@ -511,7 +511,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 																						// (max. 4 in JME)
 				Pointer pDW = (Pointer) dvert.getFieldValue("dw");
 				List<Integer> vertexIndices = vertexReferenceMap.get(Integer.valueOf(vertexIndex));// we fetch the referenced vertices here
-				if (totweight > 0 && pDW.isNotNull()) {// pDW should never be null here, but I check it just in case :)
+				if (totweight > 0 && pDW.isNotNull() && groupToBoneIndexMap!=null) {// pDW should never be null here, but I check it just in case :)
 					int weightIndex = 0;
 					List<Structure> dw = pDW.fetchData(dataRepository.getInputStream());
 					for (Structure deformWeight : dw) {