Issues

• PyTorch compatibility job succeeds after the requested version fails to install(Bug)

  pytorch/ignite#3897 · Filter by author karttikjangid opened on Oct 14, 2026

• Perplexity returns infinity for uniform float16 logits

  pytorch/ignite#3881 · Filter by author aalquwayfili opened on Oct 8, 2026

• ReduceLROnPlateauScheduler can't be restored from a checkpoint: state_dict contains a bound method

  pytorch/ignite#3879 · Filter by author G26karthik opened on Oct 7, 2026

• ReduceLROnPlateauScheduler ignores min_lr unless param_group_index is 0

  pytorch/ignite#3875 · Filter by author G26karthik opened on Oct 7, 2026

• FastaiLRFinder: first iteration ignores start_lr and get_results() pairs each loss with the next iteration's lr

  pytorch/ignite#3870 · Filter by author MohammadHijjawi97 opened on Oct 5, 2026
  1

• Entropy and MutualInformation return NaN for zero probabilities from finite logits

  low-priority
  pytorch/ignite#3854 · Filter by author AHMETHAKANBEZIR1 opened on Sep 30, 2026
  1

• JSDivergence returns NaN for finite logits after softmax underflow

  pytorch/ignite#3852 · Filter by author AHMETHAKANBEZIR1 opened on Sep 30, 2026

• BatchSizeScheduler silently re-iterates the dataset because epoch_length is never recomputed

  pytorch/ignite#3847 · Filter by author aniketpandey05 opened on Sep 28, 2026
  5

• load_state_dict fails for metrics that accumulate into lists, breaking the documented resume recipe

  bug
  pytorch/ignite#3846 · Filter by author aniketpandey05 opened on Sep 28, 2026
  7

• cmAccuracy, cmPrecision, cmRecall and DiceCoefficient accept a normalized ConfusionMatrix (average="recall"/"precision") and silently return wrong values, unlike IoU

  pytorch/ignite#3845 · Filter by author shaurya416 opened on Sep 28, 2026
  1

• Pass lists of scalars to wandb

  pytorch/ignite#3809 · Filter by author I-Absolutely-Am-Not-A-Robot opened on Jul 15, 2026
  2

• Attaching every loss separately is different from attaching them with MetricGroup

  pytorch/ignite#3806 · Filter by author I-Absolutely-Am-Not-A-Robot opened on Jul 10, 2026
  6

• Numerical stability across running-moment metrics — unified plan (tracking #3662 / #3672 / #3741)

  pytorch/ignite#3748 · Filter by author joemunene-by opened on May 11, 2026
  5

• FSDP Support

  pytorch/ignite#3724 · Filter by author intelava opened on Apr 6, 2026
  8

• Add GradientNormLogger handler for monitoring training stability

  needs-discussion
  pytorch/ignite#3707 · Filter by author itskris2283 opened on Mar 30, 2026
  8

• Distributed may deadlock in one_rank_first when an exception occurs on the target rank

  pytorch/ignite#3675 · Filter by author Prathamesh8989 opened on Mar 15, 2026
  11

• [Enhancement] Native PyTorch Implementation for SpearmanRankCorrelation

  pytorch/ignite#3663 · Filter by author Prathamesh8989 opened on Mar 9, 2026
  9

• [Bug] Numerical instability in PearsonCorrelation due to naive variance formula

  bugmodule: metrics
  pytorch/ignite#3662 · Filter by author Prathamesh8989 opened on Mar 9, 2026
  8

• Feature Request: Option to disable automatic epoch display in ProgressBar

  needs-discussionwaiting-for-response
  pytorch/ignite#3659 · Filter by author SpandanBhoiIITM opened on Mar 8, 2026
  4

• Feature Request: StratifiedBatchSampler for Guaranteed Subgroup Representation

  pytorch/ignite#3653 · Filter by author TahaZahid05 opened on Mar 7, 2026
  9

• HarmonicMean metric for ignite.metrics

  pytorch/ignite#3648 · Filter by author leelakrishnaRajasimha opened on Mar 6, 2026
  10

• [Inconsistency]: Fbeta metric lacks is_multilabel and advanced average parameters

  enhancementmodule: metrics
  pytorch/ignite#3640 · Filter by author Manimaran-tech opened on Mar 5, 2026
  20

• Bug: Events.GET_BATCH_STARTED(once=N) fires twice when engine.terminate_epoch(False) is called inside handler

  module: engine
  pytorch/ignite#3625 · Filter by author Ayush-Aditya opened on Mar 3, 2026
  4

• Resuming from checkpoint with max_epochs issue

  module: engineneeds-discussionquestion
  pytorch/ignite#3622 · Filter by author drewoldag opened on Mar 2, 2026
  7

• [Feature]: Add Mean Reciprocal Rank (MRR) metric to rec_sys

  pytorch/ignite#3569 · Filter by author steaphenai opened on Feb 21, 2026
  1