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Suggestion: reference WFGY Problem Map (RAG / LLM debugging checklist) for Modin users

Status: Open.

#7696 In modin-project/modin;

· onestardao opened on Feb 21, 2026

BUG: groupby().agg(<constant>) lead to inconsistencies with Pandas

bug 🦗Something isn't workingSomething isn't working

Triage 🩹Issues that need triageIssues that need triage

Status: Open.

#7694 In modin-project/modin;

· asddfl opened on Dec 7, 2025

BUG: groupby() and max() lead to inconsistencies with Pandas

bug 🦗Something isn't workingSomething isn't working

Triage 🩹Issues that need triageIssues that need triage

Status: Open.

#7693 In modin-project/modin;

· asddfl opened on Dec 2, 2025

BUG: Expressions combining .loc[] and .fillna() causes inconsistencies with Pandas

bug 🦗Something isn't workingSomething isn't working

Triage 🩹Issues that need triageIssues that need triage

Status: Open.

#7692 In modin-project/modin;

· asddfl opened on Nov 26, 2025

Modin df becomes pandas df when sent to a ray remote. How can I stop it doing that?

question ❓Questions about ModinQuestions about Modin

Triage 🩹Issues that need triageIssues that need triage

Status: Open.

#7691 In modin-project/modin;

· Liquidmasl opened on Nov 25, 2025

BUG: Data types reading from csv file differ from those of Pandas

bug 🦗Something isn't workingSomething isn't working

Triage 🩹Issues that need triageIssues that need triage

Status: Open.

#7690 In modin-project/modin;

· asddfl opened on Nov 25, 2025

BUG: series with tuple name has a column multiindex in internal pandas frame

bug 🦗Something isn't workingSomething isn't working

Status: Open.

#7689 In modin-project/modin;

· sfc-gh-mvashishtha opened on Oct 2, 2025

BUG: modin.pandas.eval() does not work at all

bug 🦗Something isn't workingSomething isn't working

P2Minor bugs or low-priority feature requestsMinor bugs or low-priority feature requests

Status: Open.

#7656 In modin-project/modin;

· sfc-gh-mvashishtha opened on Sep 2, 2025

PERF: Reduce excessive memory usage in Ray

P1Important tasks that we should complete soonImportant tasks that we should complete soon

Performance 🚀Performance related issues and pull requests.Performance related issues and pull requests.

Status: Open.

#7655 In modin-project/modin;

· sfc-gh-joshi opened on Aug 27, 2025

BUG: df.attrs fails with AttributeError: can't set attribute

bug 🦗Something isn't workingSomething isn't working

P2Minor bugs or low-priority feature requestsMinor bugs or low-priority feature requests

Status: Open.

#7652 In modin-project/modin;

· sfc-gh-jkew opened on Aug 26, 2025

BUG: 'nrows' parameter do not seem to be honoured in read_excel()

bug 🦗Something isn't workingSomething isn't working

P2Minor bugs or low-priority feature requestsMinor bugs or low-priority feature requests

pandas concordance 🐼Functionality that does not match pandasFunctionality that does not match pandas

Status: Open.

#7651 In modin-project/modin;

· deathstalkr opened on Aug 19, 2025

BUG: combine_first casts dtypes, pandas does not

bug 🦗Something isn't workingSomething isn't working

P2Minor bugs or low-priority feature requestsMinor bugs or low-priority feature requests

Status: Open.

#7642 In modin-project/modin;

· Liquidmasl opened on Aug 6, 2025