Issues

• bug(sdk-python): adding tags downstream replaces tags inherited via baggage

  bugfeat-otelfeat-tracingsdk-python
  langfuse/langfuse#18379 · Filter by author lumman0 opened on Oct 7, 2026
  

• bug: trace tree silently omits observations with cyclic parent IDs

  bugsingle-trace-ui🐞❔ unconfirmed bug
  langfuse/langfuse#18359 · Filter by author lumman0 opened on Oct 6, 2026

• bug: NO_PROXY wildcard is ignored when combined with other entries

  self-hosting🐞❔ unconfirmed bug
  langfuse/langfuse#18332 · Filter by author SrijanRoy123-github opened on Oct 6, 2026
  2

  

• auth: when sso is enforced, redirect automatically to sso provider and not ask user to press a button

  dergeraetfeat-authimprovement
  langfuse/langfuse#18331 · Filter by author marcklingen opened on Oct 6, 2026
  

• Self-hosted v4: ClickHouse guardrail errors are retried while still running, and several UI queries ignore the selected time range

  back-end-performancebug[Core] ClickHouse databasefeat-ingestionperformanceself-hosting
  langfuse/langfuse#18299 · Filter by author sprashant978 opened on Oct 6, 2026
  

• bug: Experiment results "Formatted" cell format shows compact JSON text, not trace-style Formatted view

  bugfeat-experiments🐞❔ unconfirmed bug
  langfuse/langfuse#18291 · Filter by author Tkgmuuuu opened on Oct 6, 2026
  

• bug: flaky ci (e2e-server-tests)

  bugCIdergeraet
  langfuse/langfuse#18267 · Filter by author marcklingen opened on Oct 5, 2026
  

• bug: flaky CI (tests-web)

  bugCIdergeraet
  langfuse/langfuse#18266 · Filter by author marcklingen opened on Oct 5, 2026
  

• ci: retry CI in merge queue (sometimes it is flaky)

  CIdergeraetimprovementinternal-dx
  langfuse/langfuse#18265 · Filter by author marcklingen opened on Oct 5, 2026
  

• bug: User consumption “Total cost” only sums the top 20 users

  bugfeat-dashboardfeat-llm-cost-tracking
  langfuse/langfuse#18210 · Filter by author vladbuinceanu opened on Oct 5, 2026
  1

  

• bug: Annotation queue — unsaved score comment is silently discarded on "Mark Completed"

  bugfeat-annotationfeat-scores
  langfuse/langfuse#18185 · Filter by author ashmalaviya opened on Oct 4, 2026
  1

  

• bug: mapped langfuse.* attributes are still duplicated under metadata.attributes for spans outside the Langfuse SDK (follow-up to #12371)

  bugfeat-ingestionfeat-otelintegration-otel
  langfuse/langfuse#18182 · Filter by author Schommer475 opened on Oct 2, 2026
  

• Annotation queues: session items always show every observation with I/O — allow choosing the session view

  bugfeat-sessions
  langfuse/langfuse#18133 · Filter by author ztommasino opened on Oct 1, 2026
  

• bug(sdk-python): get_langchain_prompt drops the closing brace of nested JSON

  bugfeat-prompt-managementintegration-langchainsdk-python
  langfuse/langfuse#18131 · Filter by author JoeyTan21 opened on Oct 1, 2026
  

• Widget chart-data CSV export does not escape the header row

  bugfeat-dashboard
  langfuse/langfuse#18127 · Filter by author rajatnagda45 opened on Oct 1, 2026
  1

• Playground prompt variable values containing "$" are corrupted during compilation

  bugfeat-playground
  langfuse/langfuse#18125 · Filter by author rajatnagda45 opened on Oct 1, 2026

• Session timeline: add a hover tooltip for the icon next to the duration

  feat-sessionsimprovementsingle-session-ui
  langfuse/langfuse#18119 · Filter by author cursor opened on Oct 1, 2026
  

• bug: In-app agent: answer collapses into "Worked for" drawer when the model reasons on the step after langfuse_proposeRedirect

  bugfeat-in-app-agent🐞❔ unconfirmed bug
  langfuse/langfuse#18108 · Filter by author GinkREAL opened on Oct 1, 2026
  1

  

• bug: media de-duplication never works on Azure Blob Storage (uploadHttpStatus === 200 rejects Azure's 201 Created)

  bugfeat-multimodalself-hosting
  langfuse/langfuse#18081 · Filter by author mingquan-yuan-vizio opened on Sep 30, 2026
  

• bug: pydantic-ai cache tokens still dropped (and input double-counted) in extractUsageDetails — follow-up to #12245

  bugfeat-llm-cost-trackingfeat-otelintegration-otelintegration-pydantic-ai
  langfuse/langfuse#18057 · Filter by author HipHoff opened on Sep 30, 2026
  2

  

• Codex observability Stop hook can exhaust memory on very large rollouts

  bugfeat-tracingperformance
  langfuse/langfuse#18053 · Filter by author johnbuccola opened on Sep 29, 2026
  2

• bug: media download URLs can be signed for a different bucket

  bugfeat-multimodal-media
  langfuse/langfuse#18050 · Filter by author dakjdakd opened on Sep 29, 2026
  2

• bug: manual time edits can commit an inverted date range

  bugfeat-dashboard
  langfuse/langfuse#18047 · Filter by author dakjdakd opened on Sep 29, 2026
  1

  

• bug: OpenAI-compatible usage with provider fields loses normalized token counts

  bugfeat-ingestionfeat-llm-cost-tracking
  langfuse/langfuse#18046 · Filter by author dakjdakd opened on Sep 29, 2026
  

• (feat) dashboard: cost breakdown and filters by ingestion API key

  feature
  langfuse/langfuse#18043 · Filter by author ryan-dyer-sp opened on Sep 29, 2026
  1