kinect problem

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Hello，I am having a problem when doing the gazebo simulation with a kinect in it.The scene has some problem with a plane formed by the point cloud blocking in the view,which has a big impact on my work.The problem can be seen as follows.

I tried updating my gazebo version and modifying the srdf file of the kinect or changing the gazebo world,but the cloud point plane is still there blocking my view.I'm not sure if it's the problem with the kinect plugin,does anyone meet this problem before?

The launch file is as follows:

<launch>

    <!-- set launch parameters -->
    <arg name="world_name" value="$(find mrobot_gazebo)/worlds/playground.world"/>
    <arg name="paused" default="false"/>
    <arg name="use_sim_time" default="true"/>
    <arg name="gui" default="true"/>
    <arg name="headless" default="false"/>
    <arg name="debug" default="false"/>

    <!-- run gazebo environment -->
    <include file="$(find gazebo_ros)/launch/empty_world.launch">
        <arg name="world_name" value="$(arg world_name)" />
        <arg name="debug" value="$(arg debug)" />
        <arg name="gui" value="$(arg gui)" />
        <arg name="paused" value="$(arg paused)"/>
        <arg name="use_sim_time" value="$(arg use_sim_time)"/>
        <arg name="headless" value="$(arg headless)"/>
    </include>

    <!--load robot description parameters -->
    <param name="robot_description" command="$(find xacro)/xacro --inorder '$(find mrobot_gazebo)/urdf/mrobot_with_kinect.urdf.xacro'" />

    <!-- run joint_state_publisher  -->
    <node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" ></node> 

    <!-- run robot_state_publisher -->
    <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher"  output="screen" >
        <param name="publish_frequency" type="double" value="50.0" />
    </node>

    <!-- load robot model in gazebo-->
    <node name="urdf_spawner" pkg="gazebo_ros" type="spawn_model" respawn="false" output="screen"
          args="-urdf -model mrobot -param robot_description"/> 

</launch>

the urdf file is as follows:

<?xml version="1.0"?>

<robot name="mrobot" xmlns:xacro="http://www.ros.org/wiki/xacro">

    <xacro:include filename="$(find mrobot_gazebo)/urdf/mrobot_body.urdf.xacro" />
    <xacro:include filename="$(find mrobot_gazebo)/urdf/kinect.xacro" />

    <xacro:property name="kinect_offset_x" value="-0.06" />
    <xacro:property name="kinect_offset_y" value="0" />
    <xacro:property name="kinect_offset_z" value="0.035" />

    <!-- Body of mrobot, with plates, standoffs and Create (including sim sensors) -->
    <mrobot_body/>

    <!-- Attach the Kinect -->
    <joint name="kinect_frame_joint" type="fixed">
        <origin xyz="${kinect_offset_x} ${kinect_offset_y} ${kinect_offset_z}" rpy="0 0 0" />
        <parent link="plate_2_link"/>
        <child link="camera_link"/>
    </joint>
    <xacro:kinect_camera prefix="camera"/>

</robot>

the kinect.xacro file is as follows:

<?xml version="1.0"?>
<robot xmlns:xacro="http://www.ros.org/wiki/xacro" name="kinect_camera">

    <xacro:macro name="kinect_camera" params="prefix:=camera">
        <!-- Create kinect reference frame -->
        <!-- Add mesh for kinect -->
        <link name="${prefix}_link">
            <origin xyz="0 0 0" rpy="0 0 0"/>
            <visual>
                <origin xyz="0 0 0" rpy="0 0 ${M_PI/2}"/>
                <geometry>
                    <mesh filename="package://mrobot_description/meshes/kinect.dae" />
                </geometry>
            </visual>
            <collision>
                <geometry>
                    <box size="0 ...