Hi guys !   I am trying to create a classical 2D platform game (They are so great, aren't they?) with Phaser that i discovered recently. I certainly explain why i am not able to explain the reason of this strange behavior.   My problem is that when i am moving my character, it only collides with the top and down sides of my blocks. Is there any reason for that behavior ?   Here is my global configuration: // Physics configurationthis.phaserInstance.physics.startSystem(Phaser.Physics.ARCADE);thi