Running a Gazebo simulation of a CAD package in a remote container failed five ways in a row, each hidden behind the last: stock images have python3 but no python, one CAD library's install overwrote another's geometry module so every CadQuery part failed, and a world exporter's meshes didn't come back with the world file so Gazebo couldn't load it.
From the Grok pain-radar digest, Oct 25-26 2026 (Oct 25 daytime to Oct 26 morning slots). Verified live 2026-10-26: issue/PR read on GitHub; title and state confirmed.