When rendering it's usual required that you set a default pose or position for your object to become a reference for later renders even if the object deforms or moves around. This is to prevent "swimming" or a texture effect appearing to slide across the object as it animates. It's typically referred to by its technical name of Pref.
In Houdini you can easily set a parameter using these steps:
From here your renders should use the default position and shape set by the Rest node.