Collision Response Problem

[JohnTitor]

Hello everyBody, I have a problem :

I control a dynamic Object with input but when this object touch an object static, My object is eject.

here is a step simulation
float lastFrameTimeSecs = timer.getTimeSeconds(); / timer interne of bullet
myWorld->stepSimulation(lastFrameTimeSecs, 10.0f,0.001f);
timer.reset();



Also, when I leave by default Fixed Time Step like this :
myWorld->stepSimulation(lastFrameTimeSecs, 10.0f);

Here is what happens :

the object is too much nested in the other.