Used the instancing transformation method for the normal pass in SSAO as it was producing a crash when instancing was enabled.

jme3-effects/src/main/resources/Common/MatDefs/SSAO/normal.vert

@@ -19,6 +19,6 @@ void main(void)
    #ifdef NUM_BONES
        Skinning_Compute(modelSpacePos,modelSpaceNormals);
    #endif
-   normal = normalize(g_NormalMatrix * modelSpaceNormals);
+   normal = normalize(TransformNormal(modelSpaceNormals));
    gl_Position = g_WorldViewProjectionMatrix * modelSpacePos;
 }