# Outages on May 4, 2021 (UTC)

> 36 incidents started on May 4, 2021 (UTC) on the status pages Rewindex archives, 12 labelled major or critical by the vendor (Red Hat (incl. Quay.io), Elastic Cloud, Discord); 6 more were still open from earlier days.

Canonical: https://rewindex.com/outages/2021-05-04
Last updated: 2021-05-11T21:15:00Z

- Incidents started: 36 (major/critical: 12, other: 24) across 25 vendors
- Still open from earlier days: 6 · Maintenance windows: 7 · Detected outage events: 0
- By vendor impact label: critical 2, major 10, minor 19, none 5
- Previous day with incidents: [2021-05-03](https://rewindex.com/outages/2021-05-03.md) · Next: [2021-05-05](https://rewindex.com/outages/2021-05-05.md) · [All days](https://rewindex.com/outages.md)

Impact labels are the vendor’s own. Incidents come from each vendor’s status page; Rewindex does not measure outages.

## Incidents started this day

| Vendor | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Status |
| --- | --- | --- | --- | --- | --- |
| [Red Hat (incl. Quay.io)](https://rewindex.com/company/red-hat.md) | [Customer Portal Downloads connection timeouts](https://rewindex.com/company/red-hat/incidents/wt9xlydlsqhz.md) | critical | 2021-05-04 03:16 UTC | 2021-05-04 03:52 UTC | resolved |
| [Elastic Cloud](https://rewindex.com/company/elastic-cloud.md) | [cloud.elastic.co may be experiencing issues](https://rewindex.com/company/elastic-cloud/incidents/cghlsk4c1tfh.md) | critical | 2021-05-04 15:35 UTC | 2021-05-04 16:17 UTC | resolved |
| [Discord](https://rewindex.com/company/discord.md) | [Large guilds intermittently unavailable.](https://rewindex.com/company/discord/incidents/dx46xxt9h18v.md) | major | 2021-05-04 02:36 UTC | 2021-05-04 03:15 UTC | resolved |
| [Bandwidth](https://rewindex.com/company/bandwidth.md) | [Bandwidth Local Market Impairment - LATA: 568 (Harlingen, TX)](https://rewindex.com/company/bandwidth/incidents/3dq3xrxswm6n.md) | major | 2021-05-04 07:14 UTC | 2021-05-04 14:41 UTC | resolved |
| [Aircall](https://rewindex.com/company/aircall.md) | [Inbound calls issue](https://rewindex.com/company/aircall/incidents/bgmfx7hdsst9.md) | major | 2021-05-04 07:45 UTC | 2021-05-04 10:14 UTC | resolved |
| [Keeper](https://rewindex.com/company/keeper.md) | [Firefox browser extension issue for some users](https://rewindex.com/company/keeper/incidents/kmsdqjg1y0ms.md) | major | 2021-05-04 12:33 UTC | 2021-05-04 14:57 UTC | resolved |
| [WorkOS](https://rewindex.com/company/workos.md) | [SSO API Issues](https://rewindex.com/company/workos/incidents/20wb8thqbx0b.md) | major | 2021-05-04 15:00 UTC | 2021-05-04 16:45 UTC | resolved |
| [FullStory](https://rewindex.com/company/fullstory.md) | [Indexing of sessions is delayed](https://rewindex.com/company/fullstory/incidents/jbh505z6g8qv.md) | major | 2021-05-04 15:33 UTC | 2021-05-04 22:42 UTC | resolved |
| [Red Hat (incl. Quay.io)](https://rewindex.com/company/red-hat.md) | [Search Incident](https://rewindex.com/company/red-hat/incidents/hsg6sqcyrr29.md) | major | 2021-05-04 16:06 UTC | 2021-05-04 18:49 UTC | resolved |
| [Sentry](https://rewindex.com/company/sentry.md) | [SMS 2FA Partially Unavailable](https://rewindex.com/company/sentry/incidents/hmwy36vmnvxr.md) | major | 2021-05-04 19:33 UTC | 2021-05-04 21:35 UTC | resolved |
| [LaunchDarkly](https://rewindex.com/company/launchdarkly.md) | [flag updates delayed for polling SDKs](https://rewindex.com/company/launchdarkly/incidents/c810yj4khkxg.md) | major | 2021-05-04 20:17 UTC | 2021-05-04 21:02 UTC | resolved |
| [Render](https://rewindex.com/company/render.md) | [Docker builds failing with status 415](https://rewindex.com/company/render/incidents/yf9lyrg01jvk.md) | major | 2021-05-04 20:42 UTC | 2021-05-05 00:00 UTC | resolved |
| [Confluent](https://rewindex.com/company/confluent.md) | [Degraded performance in Confluent Cloud in AWS/AP-SOUTHEAST-2 for Basic and Standard tiers](https://rewindex.com/company/confluent/incidents/vj370xk5lm30.md) | minor | 2021-05-04 00:02 UTC | 2021-05-04 00:18 UTC | resolved |
| [Confluent](https://rewindex.com/company/confluent.md) | [Intermittent login failures](https://rewindex.com/company/confluent/incidents/lntqrd6nyn5t.md) | minor | 2021-05-04 01:06 UTC | 2021-05-04 01:24 UTC | resolved |
| [MessageBird (Bird)](https://rewindex.com/company/messagebird-bird.md) | [Delays in WhatsApp API](https://rewindex.com/company/messagebird-bird/incidents/km7nbvtsm4d1.md) | minor | 2021-05-04 01:40 UTC | 2021-05-04 01:53 UTC | resolved |
| [Plivo](https://rewindex.com/company/plivo.md) | [Delivery delay on inbound SMS towards US phone numbers in Harlingen, TX](https://rewindex.com/company/plivo/incidents/6kcl9qqct15s.md) | minor | 2021-05-04 07:33 UTC | 2021-05-04 16:17 UTC | resolved |
| [MessageBird (Bird)](https://rewindex.com/company/messagebird-bird.md) | [Intermittent Voice issues](https://rewindex.com/company/messagebird-bird/incidents/yq3z2wnxkmbv.md) | minor | 2021-05-04 08:07 UTC | 2021-05-04 08:33 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [Inbound Call Failures to a Subset of Twilio Phone Numbers in Romania, Italy, Spain, Netherlands & Belgium](https://rewindex.com/company/twilio/incidents/1h2d3w80y8g4.md) | minor | 2021-05-04 08:10 UTC | 2021-05-04 11:31 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [Inbound MMS and MMS DLR Processing for USA and Canada are Failing](https://rewindex.com/company/twilio/incidents/k5sb1znjplkr.md) | minor | 2021-05-04 08:41 UTC | 2021-05-04 10:24 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [Inbound Call Issues to a Subset of Twilio UK Phone Numbers](https://rewindex.com/company/twilio/incidents/j7bqljf4g5ty.md) | minor | 2021-05-04 13:50 UTC | 2021-05-04 19:27 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Delays to Vala Network in Republic of Kosovo](https://rewindex.com/company/twilio/incidents/5m8jf3ryd382.md) | minor | 2021-05-04 15:23 UTC | 2021-05-07 20:49 UTC | resolved |
| [Netlify](https://rewindex.com/company/netlify.md) | [Regular CDN Latencies](https://rewindex.com/company/netlify/incidents/3612l7kcp0qc.md) | minor | 2021-05-04 15:41 UTC | 2021-05-04 15:41 UTC | resolved |
| [Netlify](https://rewindex.com/company/netlify.md) | [Netlify Website 404s](https://rewindex.com/company/netlify/incidents/byw3jkrq8d3x.md) | minor | 2021-05-04 15:58 UTC | 2021-05-04 16:25 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [On Call Engineers are Investigating Issue with Flex](https://rewindex.com/company/twilio/incidents/prpscgmgsd8z.md) | minor | 2021-05-04 18:08 UTC | 2021-05-04 18:34 UTC | resolved |
| [Sinch](https://rewindex.com/company/sinch.md) | [Degraded performance - Rogers Wireless and Fido CA](https://rewindex.com/company/sinch/incidents/k6b6ttxkl5sd.md) | minor | 2021-05-04 18:10 UTC | 2021-05-05 03:40 UTC | resolved |
| [Sinch](https://rewindex.com/company/sinch.md) | [Degraded Performance - Telekom Germany](https://rewindex.com/company/sinch/incidents/glx8zzvp2vr2.md) | minor | 2021-05-04 18:48 UTC | 2021-05-05 00:15 UTC | resolved |
| [Pendo](https://rewindex.com/company/pendo.md) | [Issues uploading CSVs](https://rewindex.com/company/pendo/incidents/hbwbm6zzcc48.md) | minor | 2021-05-04 19:03 UTC | 2021-05-04 20:42 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Report Delays For Germany T-mobile](https://rewindex.com/company/twilio/incidents/k8w9lxgl2y0w.md) | minor | 2021-05-04 19:14 UTC | 2021-05-04 20:45 UTC | resolved |
| [Segment](https://rewindex.com/company/segment.md) | [Personas realtime computation delays](https://rewindex.com/company/segment/incidents/w7lqb3kfkc32.md) | minor | 2021-05-04 20:17 UTC | 2021-05-04 22:55 UTC | resolved |
| [v0](https://rewindex.com/company/v0.md) | [Elevated Traffic Timeout Rates](https://rewindex.com/company/v0/incidents/1y1ttn2gfyr7.md) | minor | 2021-05-04 20:48 UTC | 2021-05-04 21:53 UTC | resolved |
| [Vercel](https://rewindex.com/company/vercel.md) | [Elevated Traffic Timeout Rates](https://rewindex.com/company/vercel/incidents/1y1ttn2gfyr7.md) | minor | 2021-05-04 20:48 UTC | 2021-05-04 21:53 UTC | resolved |
| [Hotjar](https://rewindex.com/company/hotjar.md) | [Heatmap screenshots not generating](https://rewindex.com/company/hotjar/incidents/rq05wzjqfvhj.md) | none | 2021-05-04 11:46 UTC | 2021-05-04 12:31 UTC | resolved |
| [Contentful](https://rewindex.com/company/contentful.md) | [Issues with Navigation buttons on Space Home page](https://rewindex.com/company/contentful/incidents/zzthdrxf25wr.md) | none | 2021-05-04 14:00 UTC | 2021-05-04 14:00 UTC | resolved |
| [Confluent](https://rewindex.com/company/confluent.md) | [Degraded performance in Confluent Cloud in GCP/US-WEST2 for Basic and Standard tiers](https://rewindex.com/company/confluent/incidents/r6j5s04n9x00.md) | none | 2021-05-04 17:30 UTC | 2021-05-04 17:30 UTC | resolved |
| [Scaleway](https://rewindex.com/company/scaleway.md) | [\[Network\] RPN issues between DC3 and DC5](https://rewindex.com/company/scaleway/incidents/z7ctj4qcs6ws.md) | none | 2021-05-04 18:02 UTC | 2021-05-04 18:02 UTC | resolved |
| [Mux](https://rewindex.com/company/mux.md) | [Incomplete data in Delivery Usage API for 2021-04-26 20:31 to 2021-05-03 20:10 UTC](https://rewindex.com/company/mux/incidents/69hc03y4ccvg.md) | none | 2021-05-04 21:15 UTC | 2021-05-13 12:13 UTC | resolved |

## Still open from earlier days

| Vendor | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Status |
| --- | --- | --- | --- | --- | --- |
| [Scaleway](https://rewindex.com/company/scaleway.md) | [\[WEBHOSTING\] Platform 1000](https://rewindex.com/company/scaleway/incidents/8q2fgvy13sw0.md) | major | 2021-05-01 16:00 UTC | 2021-05-11 08:02 UTC | resolved |
| [Klaviyo](https://rewindex.com/company/klaviyo.md) | [Delay in Real-Time Segmentation Processing](https://rewindex.com/company/klaviyo/incidents/0t9x44l09ff9.md) | major | 2021-05-03 22:11 UTC | 2021-05-04 17:58 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Delays from Shortcodes to Multiple US Networks](https://rewindex.com/company/twilio/incidents/dwj093dhvsvf.md) | minor | 2021-05-03 14:16 UTC | 2021-05-04 15:33 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Delays to Orange Network in the Dominican Republic](https://rewindex.com/company/twilio/incidents/vp9xs8s6wn2c.md) | minor | 2021-05-03 17:29 UTC | 2021-05-04 20:40 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [Flex Customers Receiving an Error While Deploying a Plugin via the CLI](https://rewindex.com/company/twilio/incidents/mjhnbpmyyz8q.md) | minor | 2021-05-03 23:38 UTC | 2021-05-04 01:51 UTC | resolved |
| [Substack](https://rewindex.com/company/substack.md) | [Writer dashboard statistics are unavailable](https://rewindex.com/company/substack/incidents/dg5x97gnvnm1.md) | none | 2021-05-03 23:15 UTC | 2021-05-04 01:54 UTC | resolved |

## Maintenance

| Vendor | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Status |
| --- | --- | --- | --- | --- | --- |
| [Bandwidth](https://rewindex.com/company/bandwidth.md) | [\[Scheduled\] Local Market Maintenance - Multiple Markets](https://rewindex.com/company/bandwidth/incidents/5l57d3bj1pqz.md) | maintenance | 2021-05-04 02:00 UTC | 2021-05-04 11:00 UTC | resolved |
| [Lever](https://rewindex.com/company/lever.md) | [\[Scheduled\] Scheduled maintenance](https://rewindex.com/company/lever/incidents/y4x7yjtjyrq5.md) | maintenance | 2021-05-04 02:00 UTC | 2021-05-04 04:00 UTC | resolved |
| [Twilio](https://rewindex.com/company/twilio.md) | [\[Scheduled\] US SMS Carrier Partner Maintenance](https://rewindex.com/company/twilio/incidents/0y40v5blnvvv.md) | maintenance | 2021-05-04 05:00 UTC | 2021-05-04 12:00 UTC | resolved |
| [Scaleway](https://rewindex.com/company/scaleway.md) | [\[Scheduled\] \[RPNv2\] Maintenance on s46-a10.rpn.dc3 switch](https://rewindex.com/company/scaleway/incidents/fn3sqrpqn83r.md) | maintenance | 2021-05-04 07:30 UTC | 2021-05-04 08:32 UTC | resolved |
| [Sinch](https://rewindex.com/company/sinch.md) | [\[Scheduled\] Updated New Schedule \[SSL Certificate Renewal and Installation\] WhatsApp EU API Gateway - 4th May 2021 @ 8:00-9:00 UTC](https://rewindex.com/company/sinch/incidents/3p41yglj8b80.md) | maintenance | 2021-05-04 08:00 UTC | 2021-05-04 09:00 UTC | resolved |
| [Sinch](https://rewindex.com/company/sinch.md) | [\[Scheduled\] Updated New Schedule \[SSL Certificate Renewal and Installation\] WhatsApp US API Gateway - 4th May 2021 @ 10:00-11:00 UTC](https://rewindex.com/company/sinch/incidents/5p1m8n70vh62.md) | maintenance | 2021-05-04 10:01 UTC | 2021-05-04 11:00 UTC | resolved |
| [Sinch](https://rewindex.com/company/sinch.md) | [\[Scheduled\] External Emergency Maintenance - Vodafone UK](https://rewindex.com/company/sinch/incidents/lkkdgtmz21nq.md) | maintenance | 2021-05-04 22:00 UTC | 2021-05-05 07:01 UTC | resolved |

## Cite this

36 vendor-reported incidents started on 2021-05-04 (UTC) across 25 vendors, 12 labelled major or critical by the vendor.

- Canonical URL: https://rewindex.com/outages/2021-05-04
- Citation: Rewindex daily outage roundup, “Outages on May 4, 2021” (2021-05-04 00:00 UTC). Archived by Rewindex: https://rewindex.com/outages/2021-05-04 (CC BY 4.0).
- Markdown link: `[Rewindex daily outage roundup: Outages on May 4, 2021 (2021-05-04)](https://rewindex.com/outages/2021-05-04)`


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Canonical: https://rewindex.com/outages/2021-05-04 · Markdown: https://rewindex.com/outages/2021-05-04.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T11:06:21.565Z