Issues

• Op3Joystick: push perturbation is commented out and no domain randomizer is registered

  google-deepmind/mujoco_playground#362 · Filter by author YauhenBichel opened on Sep 11, 2026

• Op3Joystick: trained policies barely track forward commands below 0.3 m/s (0.1 m/s → stands still)

  google-deepmind/mujoco_playground#361 · Filter by author YauhenBichel opened on Sep 11, 2026

• Requires warp-lang<13.0

  google-deepmind/mujoco_playground#333 · Filter by author manuelhaussmann opened on Jun 25, 2026
  2

• Nested vmap over HopperHop fails

  google-deepmind/mujoco_playground#326 · Filter by author letoku opened on Jun 13, 2026
  1

• Vision tasks are limited

  google-deepmind/mujoco_playground#321 · Filter by author MagiFeeney opened on May 19, 2026
  1

• AttributeError: module 'warp.types' has no attribute 'warp_type_to_np_dtype'

  google-deepmind/mujoco_playground#317 · Filter by author longhouyunhhh opened on May 9, 2026
  2

• Port the classic Brax/Gym locomotion tasks (walker2d, hopper, halfcheetah, ant, humanoid) to Playground physics

  google-deepmind/mujoco_playground#310 · Filter by author YannBerthelot opened on Apr 23, 2026

• Add a minimal Fast env for unit testing

  google-deepmind/mujoco_playground#306 · Filter by author YannBerthelot opened on Apr 20, 2026

• BraxAutoResetWrapper discards terminal observation, breaking correct value bootstrapping on truncation

  google-deepmind/mujoco_playground#305 · Filter by author YannBerthelot opened on Apr 20, 2026
  1

• Real-world LEAP Hand cube reorientation: derived kP/kD values produce significantly different behavior

  google-deepmind/mujoco_playground#302 · Filter by author FelipeCasas opened on Apr 9, 2026
  4

• JAX 0.9.x CUDA: "No visible GPU devices" on RTX 5090 (Blackwell)

  google-deepmind/mujoco_playground#299 · Filter by author alinjar1996 opened on Mar 31, 2026

• Return substeps for reward accumulation?

  google-deepmind/mujoco_playground#296 · Filter by author aaprasad opened on Mar 27, 2026

• Sim2Real of LeapCubeReorientation task

  google-deepmind/mujoco_playground#294 · Filter by author jeongsukchul opened on Mar 17, 2026

• Is it available in gpu without rt-core like H20(which is unavailable with isaacsim/lab)

  google-deepmind/mujoco_playground#290 · Filter by author goldenstasteworriors opened on Mar 15, 2026

• Sim2real recommendations for locomotion tasks using a go2

  google-deepmind/mujoco_playground#270 · Filter by author bhenriquezsoto opened on Jan 21, 2026
  1

• Different cable behavior between MuJoCo and MuJoCo-MJX

  google-deepmind/mujoco_playground#269 · Filter by author vmstavens opened on Jan 21, 2026

• Vision Colab broken

  google-deepmind/mujoco_playground#268 · Filter by author wittenator opened on Jan 20, 2026
  1

• Reproducing PPO performance on HumanoidWalk

  google-deepmind/mujoco_playground#265 · Filter by author eleninisioti opened on Jan 16, 2026

• Add meshes to the env

  google-deepmind/mujoco_playground#262 · Filter by author YuLiHN opened on Jan 12, 2026

• Missing jp.array

  google-deepmind/mujoco_playground#261 · Filter by author ohadlor opened on Jan 11, 2026
  1

• Allow mujoco_playground._src.wrapper.Wrapper.render to accept kwargs

  google-deepmind/mujoco_playground#258 · Filter by author aaprasad opened on Jan 9, 2026
  1

• train_jax_ppo.py:ValueError: vmap got inconsistent sizes for array axes to be mapped

  google-deepmind/mujoco_playground#255 · Filter by author zifeiyu-tan opened on Jan 5, 2026
  1

• The necessity of action signal delay for sim2real

  google-deepmind/mujoco_playground#253 · Filter by author zsheddie opened on Dec 30, 2025
  2

• A setup for debugging RL training

  google-deepmind/mujoco_playground#252 · Filter by author VasilyRakche opened on Dec 28, 2025

• Question about Unitree Go2 model

  google-deepmind/mujoco_playground#359 · Filter by author bhenriquezsoto opened on Dec 22, 2025