AnimatedCharacter falling infinity [Solved]

Hello, i have the next problem, i've created an animated character and everytime it falls down to infinity and i've seen in all the post and no answer seems to work, but i've seen that normal Critter::Body works, only animatedcharacter falls to infinity, i put here my scene code:

//setup physics
mWorld = NxOgre::World::createWorld();
NxOgre::SceneDescription sceneDesc;
sceneDesc.mGravity = NxOgre::Constants::MEAN_EARTH_GRAVITY;
sceneDesc.mUseHardware=false;
mScene = mWorld->createScene(sceneDesc);
mDefaultMaterial = mScene->getMaterial(0);
mDefaultMaterial->setAll(0.1,0.5,0.5);
mRenderSystem = new Critter::RenderSystem(mScene,mSceneMgr);

//create animated character
Critter::AnimatedCharacterDescription characterDesc;
characterDesc.mShape = NxOgre::SimpleCapsule(3.0f,2.0f);
Critter::Node* sinbadNode = mRenderSystem->createNode();
sinbadNode->createAndAttachEntity("sinbad.mesh");
characterSinbad = mRenderSystem->createAnimatedCharacter(Ogre::Vector3(0,20,0), Ogre::Radian(0), sinbadNode, characterDesc);

//create Ogre head
NxOgre::BoxDescription boxDesc(3);
Critter::BodyDescription bodyDesc;
bodyDesc.mMass=15.0f;
Critter::Body* bHead = mRenderSystem->createBody(boxDesc,NxOgre::Matrix44::IDENTITY,"ogrehead.mesh",bodyDesc);

//create ground
NxOgre::PlaneGeometryDescription groundDesc;
mScene->createSceneGeometry(groundDesc);

i found a solution to the problem changing the ground from a plane to a cube, replacing the ground plane like this:

//create ground
mScene->createSceneGeometry(NxOgre::BoxDescription(3000,3,3000));

Critter::Node* sinbadNode = mRenderSystem->createNode();............!