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load_dataset("json") fails on mixed-shape JSONL when a chunksize boundary separates the shapes

Status: Open.

#8675 In huggingface/datasets;

· aksakalmustafa opened on Sep 23, 2026

push_to_hub() / to_parquet() leave nested list/struct columns uncompressed

Status: Open.

#8671 In huggingface/datasets;

· aksakalmustafa opened on Sep 23, 2026

IterableDataset.shuffle() in 5.0 reports num_shards = min(files per source), leaving DataLoader workers and distributed nodes without data

Status: Open.

#8669 In huggingface/datasets;

· rwightman opened on Sep 22, 2026

IterableDataset numpy format returns object instead of the declared dtype

Status: Open.

#8663 In huggingface/datasets;

· Yonghui-Lee opened on Sep 22, 2026

TranslationVariableLanguages crashes on empty translations with declared languages

Status: Open.

#8659 In huggingface/datasets;

· HuaTNA opened on Sep 21, 2026

Long lock filenames do not provide mutual exclusion across Python processes

Status: Open.

#8653 In huggingface/datasets;

· Yang1107-wzy opened on Sep 21, 2026

FileLock wrapper drops timeout and every other constructor argument

Status: Open.

#8637 In huggingface/datasets;

· behroozazarkhalili opened on Sep 17, 2026

Probabilistic interleave without replacement samples empty datasets

Status: Open.

#8626 In huggingface/datasets;

· HaokaiDing opened on Sep 15, 2026

DataFilesList.filter() leaves origin_metadata misaligned with the filtered files

Status: Open.

#8618 In huggingface/datasets;

· betacatsling opened on Sep 14, 2026

SplitDict.copy() crashes when dataset_name is not set

Status: Open.

#8617 In huggingface/datasets;

· betacatsling opened on Sep 14, 2026

load_dataset on a dataset name with no namespace raises HfUriError

Status: Open.

#8612 In huggingface/datasets;

· ebarkhordar opened on Sep 12, 2026

push_to_hub() keeps stale dataset_info.features when re-pushing a single split with different columns

Status: Open.

#8608 In huggingface/datasets;

· belambert opened on Sep 12, 2026