Elevated webhook delivery latency

What to do

• Check whether you use Mux Mux Video - VOD, Mux Video - Live. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 44m it lasted.

  Anything that failed between 2026-09-24 17:37 UTC and 2026-09-24 18:21 UTC may need a replay.

• Subscribe to Mux's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=mux works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Mux 4

1. investigatingSep 24, 2026, 5:37 PM UTC

   We are currently investigating elevated webhook delivery times. Beginning at 16:40 UTC, some webhooks are being delivered with a delay of approximately 5 minutes. Video processing, playback, and API requests are not affected, and no webhook events are being dropped — delayed events will still be delivered. We will provide an update as soon as we have more information.

   provider

2. identifiedSep 24, 2026, 5:44 PM UTC

   We have identified the cause of the elevated webhook delivery times. An issue in one of our internal database clusters introduced a delay in the pipeline that queues webhook events, resulting in delivery delays beginning at 16:40 UTC. Video processing, playback, and API requests are unaffected, and no events have been lost — delayed webhooks are still being delivered. Delivery times are beginning to recover.

   provider

3. monitoringSep 24, 2026, 5:51 PM UTC

   Webhook delivery times have returned to normal. Between 16:40 UTC and 17:36 UTC, webhook events were delivered with delays averaging around 5 minutes, with some events delayed up to 15 minutes. Video processing, playback, and API requests were unaffected, and no events were lost — all delayed webhooks have been delivered.We have addressed the underlying issue in one of our internal database clusters and are monitoring to confirm.

   provider

4. resolvedSep 24, 2026, 6:21 PM UTC

   This incident has been resolved. Between 16:40 UTC and 17:36 UTC, webhook events were delivered with delays averaging around 5 minutes, with some events delayed up to 15 minutes. Video processing, playback, and API requests were unaffected, and no events were lost — all delayed webhooks have been delivered.The underlying issue in one of our internal database clusters has been addressed, and delivery times have been stable since 17:36 UTC. We apologize for the disruption.

   provider

Corrections

None so far.

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