Issues

• [BUG] memmap and save of a TypedTensorDict return a TensorDict for a .tdz archive, but the TypedTensorDict for a directory

  bugtriaged
  pytorch/tensordict#3324 · Filter by author peterdsharpe opened on Oct 23, 2026

• [BUG] pad_sequence and unpad_sequence lose the null masks of from_arrow(nulls="mask"), and can drop rows

  pytorch/tensordict#3313 · Filter by author peterdsharpe opened on Oct 22, 2026

• [BUG] from_arrow and from_parquet let nulls through in maps, list views, dictionary values and unions under nulls="raise"

  bugtriaged
  pytorch/tensordict#3312 · Filter by author peterdsharpe opened on Oct 22, 2026
  1

• [BUG] Type checkers type torch.stack and torch.cat of tensordicts as Tensor

  pytorch/tensordict#3271 · Filter by author peterdsharpe opened on Oct 22, 2026

• [BUG] Saving a jagged or bfloat16 leaf to h5 or zarr fails with a torch error that names no key

  pytorch/tensordict#3265 · Filter by author peterdsharpe opened on Oct 22, 2026

• [BUG] UnbatchedTensor leaves come back as plain tensors from h5, zarr and .tdz files, and don't load with weights_only=True

  triaged
  pytorch/tensordict#3264 · Filter by author peterdsharpe opened on Oct 22, 2026
  1

• [BUG] Reopening an h5 file with from_h5 loses the dim names and the nested batch sizes, where zarr keeps both

  pytorch/tensordict#3263 · Filter by author peterdsharpe opened on Oct 22, 2026

• [BUG] Detailed printing of an h5 or zarr file reads every leaf, and of a lazy stack stacks its leaves

  pytorch/tensordict#3257 · Filter by author peterdsharpe opened on Oct 22, 2026

• [BUG] A killed append_memmap leaves the saved directory unloadable

  pytorch/tensordict#3249 · Filter by author peterdsharpe opened on Oct 22, 2026

• [Deprecation] Writes like td[:] = x on a tensordict without batch dims work silently while the same reads raise

  Deprecation
  pytorch/tensordict#3221 · Filter by author peterdsharpe opened on Oct 21, 2026

• [BUG] densify() gives a missing key the batch size of another member when the members' batch sizes differ

  bug
  pytorch/tensordict#3219 · Filter by author peterdsharpe opened on Oct 21, 2026

• [BUG] DataLoader workers do not read the rows of an h5 or zarr PersistentTensorDict: the main process reads every batch

  bugPerformancetriaged
  pytorch/tensordict#3218 · Filter by author peterdsharpe opened on Oct 21, 2026
  1

• [BUG] update and update_ disagree when keys_to_update names a sub-tensordict and a key under it

  bug
  pytorch/tensordict#3217 · Filter by author peterdsharpe opened on Oct 21, 2026

• [BUG] update(keys_to_update=[...]) writes keys it was not given when the source is a dict with tuple keys

  bug
  pytorch/tensordict#3216 · Filter by author peterdsharpe opened on Oct 21, 2026

• [BUG] Listing the nested keys of a lazy stack of lazy stacks of HDF5 files, or of files mixed with in-memory tensordicts, still reads datasets

  bugPerformancetriaged
  pytorch/tensordict#3209 · Filter by author peterdsharpe opened on Oct 21, 2026
  1

• [BUG] td[:, ids] past the batch dims raises IndexError in 0.15 without a deprecation, which breaks EmbodiChain

  bugtriaged
  pytorch/tensordict#3202 · Filter by author peterdsharpe opened on Oct 21, 2026
  1

• [BUG] Overwriting a consolidated file of the same size with data that came from it saves wrong values

  bugtriaged
  pytorch/tensordict#3197 · Filter by author peterdsharpe opened on Oct 21, 2026
  1

• Maintain role for @peterdsharpe on pytorch/tensordict, to update the About box

  pytorch/tensordict#3157 · Filter by author peterdsharpe opened on Oct 21, 2026

• [CI] CI will fail on every PR once it installs torch 2.15.0, due 2026-10-28

  CItriaged
  pytorch/tensordict#3151 · Filter by author peterdsharpe opened on Oct 21, 2026

• [BUG] consolidate(return_early=True) on a tensorclass gives back a TensorDict

  bugtensorclasstriaged
  pytorch/tensordict#3149 · Filter by author peterdsharpe opened on Oct 21, 2026
  1

• [Typing] Pyright cannot see the base classes of TensorDictBase, so it misses TypedTensorDict field typos

  triagedTyping
  pytorch/tensordict#3128 · Filter by author peterdsharpe opened on Oct 20, 2026
  1

• [Feature Request] Per-row string columns that cost about as much as the column itself

  enhancementFeaturetriaged
  pytorch/tensordict#3124 · Filter by author peterdsharpe opened on Oct 20, 2026
  1

• [BUG] consolidate(pin_memory=True) returns an already consolidated tensordict without pinning it

  bugtriaged
  pytorch/tensordict#3116 · Filter by author peterdsharpe opened on Oct 20, 2026
  3

• [BUG] with td.to_module(model): turns the tensors of td into Parameters that require grad

  bugtriaged
  pytorch/tensordict#3115 · Filter by author peterdsharpe opened on Oct 20, 2026
  2

• [BUG] Positional arguments can fill the wrong tensorclass field when a field is kw_only or init=False

  bugtensorclass
  pytorch/tensordict#3100 · Filter by author peterdsharpe opened on Oct 20, 2026