I have 2 SDF models : robotarm and mobilerobot.

mobilerobot is similar to the mobile robot from Gazebo's tutorial "make a mobile robot" except that I used the tag to insert a robotarm on top of the mobile base.

<?xml version='1.0'?>
<sdf version='1.6'>
  <model name="mobile_robot">
    <static>false</static>

    [...]

    <include>
      <uri>model://robot_arm</uri>
      <pose>0.0 0 0.15 0 0 0</pose>
    </include>
  </model>
</sdf>

I start gazebo and insert a robotarm, then a mobilerobot (containing its own robotarm). After that, I select the robotarm (the one alone) and press Delete on the keyboard. robotarm is removed but the arm included on mobilerobot as well. Then Gazebo crashes.

Worth to mention : this does not happen if I delete mobilerobot first. robotarm stays in the simulation and nothing crashes. Inserting mobilerobot first and then robotarm will crash the same way if I delete the robot_arm first.

I have tested with ODE, Simbody and Bullet. Same result (unless it does not crash in bullet). Using Gazebo 7 on Ubuntu 14-04.

Does anyone ever noticed something similar?