021 Gem Orbiting Part Bug 1

The model receives the prompt (and optional system message). The run uses scorer roblox_open_eval with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

[Roblox OpenGameEval] I tried to make a gem that orbits a part, but the gem isn't showing up in the game at all. It's completely invisible and doesn't seem to exist in the Workspace.

{
  "input_script": "[embedded in CLI runner]",
  "upstream_path": "DebugEvals/021_gem_orbiting_part_bug_1.lua",
  "upstream_sha256": "d74abd8191923fa1c9d153978af23540335d0a89e1ac28df220727d77b209ebc",
  "scenario_name": "021_gem_orbiting_part_bug_1",
  "place": "baseplate.rbxl",
  "eval_kind": "debug"
}