Issues

• Sampled UniZero: two bugs blocking large discrete action spaces (collect/eval batch corruption + ragged bootstrap_action_tmp)

  bug
  opendilab/LightZero#506 · Filter by author mimansoor opened on Sep 16, 2026
  3

• Gumbel AlphaZero (ctree) does not learn: OOB child indexing, frozen noise, and algorithm deviations

  opendilab/LightZero#493 · Filter by author marco-costa-ml opened on Jul 27, 2026

• ptree_sez bugs for discrete action spaces

  Bug

  opendilab/LightZero#489 · Filter by author esparano opened on Jun 14, 2026
  2

• EfficientZero v2

  algorithm
  opendilab/LightZero#482 · Filter by author esparano opened on May 28, 2026
  1

• Release PriorZero checkpoints on Hugging Face

  discussion
  opendilab/LightZero#481 · Filter by author NielsRogge opened on May 13, 2026
  1

• AttributeError: 'MCTS' object has no attribute 'get_next_actions_batch' [bug]

  Bug

  opendilab/LightZero#479 · Filter by author weisili2016 opened on Apr 23, 2026
  2

• Fully migrate from gym to gymnasium

  configdependencies
  opendilab/LightZero#471 · Filter by author pminervini opened on Feb 4, 2026
  2

• 可能的性能优化：

  efficiency optimization
  opendilab/LightZero#460 · Filter by author mycve opened on Dec 31, 2025
  2

• setting an array element with a sequence. The requested array has an inhomogeneous shape after 2 dimensions. The detected shape was (256, 6) + inhomogeneous part.

  bug
  opendilab/LightZero#458 · Filter by author svha1977 opened on Dec 11, 2025
  7

• 关于项目的疑问

  discussionefficiency optimization
  opendilab/LightZero#439 · Filter by author mycve opened on Nov 9, 2025
  10

• something wrong when running metadrive

  bug
  opendilab/LightZero#388 · Filter by author xc4xpzhf opened on Jul 19, 2025
  3