Hi all, I am currently using the boxturtle version of ros, and when I launch gazebo with my robot inside, I get the following error: [ INFO] 3.150000000: Callback thread id=0xaab4d5b8 gazebo: OgreShadowCaster.cpp:225: virtual void Ogre::ShadowCaster::generateShadowVolume(Ogre::EdgeData*, const Ogre::HardwareIndexBufferSharedPtr&, const Ogre::Light*, std::vector >&, long unsigned int): Assertion `v1 < 65536 && v0 < 65536 && (v0 + originalVertexCount) < 65536 && "Vertex count exceeds 16-bit index limit!"' failed. [gazebo-2] process has died [pid 21925, exit code -6]. ... and then gazebo crashes. It was tried on another computer with shared installation and works fine there, so the problem is not with the code. I will install the other version, if this cannot be fixed, but if somebody knows the reason, it will be great :) Thanks, Kirila Adamova