After upgrading from version 2.5 to 2.6.1 nothing moved any more in my game. The movement is done by the Box2D capabilities.
After a while I found out that the PhysicsWorld entity has to stand right at the beginning of the scene before any object whish is correlated to this.
In version 2.5 this wasn’t an issue and this new issue isn’t discriped in the VPlay 2.5 – Box2D Upgrade Guide (http://felgo.com/doc/box2d-upgrade-2-5/).