Issues

• MCMC convergence catastrophically fails below a specific media channel count, independent of channel identity, priors, knots, precision, or version

  google/meridian#1778 · Filter by author dustinmaurer opened on Aug 14, 2026
  3

• Issue with model saving in Serde not keeping media prior type

  google/meridian#1751 · Filter by author twolf89 opened on Aug 4, 2026
  1

• sample_posterior() taking too long to run?

  google/meridian#1746 · Filter by author nizarhaider-ops opened on Jul 30, 2026
  1

• RFC: support KPIs with occasional negative values (e.g. net revenue, net promoter-style score, net cash flow) in Meridian

  google/meridian#1713 · Filter by author TylerDurdenUI opened on Jul 17, 2026

• sample_posterior 00Ms during posterior reconstruction on configs that fit pre-#1465( <= v1.5.2)

  google/meridian#1709 · Filter by author TylerDurdenUI opened on Jul 17, 2026
  1

• Google Merdian Budget Optimization when KPI is non revenue

  google/meridian#1676 · Filter by author Romi-del opened on Jul 3, 2026
  3

• meridian_serde.save_meridian() fails on non-uniform (e.g. calendar-monthly) time axes that InputData validation accepts

  google/meridian#1675 · Filter by author farok-amo opened on Jul 2, 2026
  1

• Question about geo-level budget allocation optimization

  google/meridian#1668 · Filter by author JP-LopezEsc opened on Jun 29, 2026

• GPU Memory Exhaustion During Model Fitting on NVIDIA T4

  google/meridian#1666 · Filter by author GeethaJoseph opened on Jun 25, 2026
  1

• Channel order mismatch between media and media_spend can silently produce incorrect spend attribution

  google/meridian#1644 · Filter by author h30s opened on Jun 16, 2026
  3

• MCMC non-convergence and catastrophic predictive_accuracy on 1.6.0 with official tfp-nightly dependency

  google/meridian#1624 · Filter by author Delong-Li-Martech opened on Jun 9, 2026
  2

• IndependentMultiVariateDistribution and serializing models

  google/meridian#1623 · Filter by author Amanda-MCN opened on Jun 9, 2026
  1

• Run scenario planner without looker studio

  google/meridian#1620 · Filter by author stormzy911 opened on Jun 8, 2026
  2

• Revenue based model not working

  google/meridian#1596 · Filter by author atishyaghosh007 opened on May 15, 2026
  1

• ModelReviewer/BayesianPPPCheck fails when using JAX backend - TypeError: einsum requires ndarray or scalar arguments, got xarray at position 0.

  google/meridian#1589 · Filter by author aswan89 opened on May 8, 2026
  3

• System crash for geo level MMM

  google/meridian#1585 · Filter by author rohiitthakur opened on May 4, 2026
  1

• How to model Retail shops in a geo hierarchy model

  google/meridian#1567 · Filter by author georgemarsci opened on Apr 23, 2026
  3

• Do you have to run Scenario Planner in Colab or can you run it in any IDE?

  google/meridian#1555 · Filter by author SC-SRA opened on Apr 17, 2026
  1

• Update TensorFlow dependency to address CVE-2026-2492 (Uncontrolled Search Path Element)

  google/meridian#1538 · Filter by author ghost opened on Apr 8, 2026
  3

• "ValueError: times coords already set" when n_media_times = n_times + max_lag

  google/meridian#1502 · Filter by author JankyChris opened on Mar 9, 2026
  8

• Error when using the Meridian Community Connector in Looker Studio

  google/meridian#1486 · Filter by author JankyChris opened on Feb 26, 2026
  7

• Contradictory results

  google/meridian#1469 · Filter by author KatatoniaSh opened on Feb 13, 2026
  1

• ModelFitting Error: Model has critical EDA Issue

  google/meridian#1466 · Filter by author ecalamia101697 opened on Feb 12, 2026
  5

• KeyError when converting Proto to DataFrame

  google/meridian#1464 · Filter by author JankyChris opened on Feb 11, 2026
  3

• x

  google/meridian#1455 · Filter by author profkeniamartinez-lab opened on Feb 6, 2026