Gazebo not setting pose offset provided by world file

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Hello,

I have exported some models from Blender to Collada. They had a certain pose offset from the origin.

In the world file I set an pose offset <pos e="">300 300 -20 0 0 0</pose> . For some models it works, and for some not. In the example below my_ground is compensated for the offset and the other model not.

I have started gazebo in verbose mode, but could find any errors or warnings other than for some material warnings

[Wrn] [ColladaLoader.cc:1747] Unable to add material[Color_243_6103-material]

The example world file:

<?xml version="1.0" ?>
<sdf version="1.4">
  <world name="default">
    <include>
      <uri>model://ground_plane</uri>
    </include>
    <include>
      <uri>model://sun</uri>
    </include>

   <model name="myWorld">
      <<pose>300 300 -20  0 0 0</pose> 
      <static>true</static>

      <link name="my_ground">
        <visual name="visual">
          <geometry>    
            <mesh><uri>model://my_ground.dae</uri></mesh>
          </geometry>
        </visual>
        <collision name="collision">
          <geometry>
            <mesh><uri>model://my_ground.dae</uri></mesh>
          </geometry>
        </collision>
      </link>

      <link name="my_model">
        <visual name="visual">
          <geometry>    
            <mesh><uri>model://my_model.dae</uri></mesh>
          </geometry>
        </visual>
        <collision name="collision">
          <geometry>
            <mesh><uri>model://my_model.dae</uri></mesh>
          </geometry>
        </collision>
      </link>

    </model>

  </world>
</sdf>

BR & thanks for any help