# Outages on December 20, 2025 (UTC) > 13 incidents started on December 20, 2025 (UTC) on the status pages Rewindex archives, 5 labelled major or critical by the vendor (Maven Central, Moonshot AI (Kimi), Help Scout); 5 more were still open from earlier days. Canonical: https://rewindex.com/outages/2025-12-20 Last updated: 2025-12-27T17:00:00Z - Incidents started: 13 (major/critical: 5, other: 8) across 12 vendors - Still open from earlier days: 5 · Maintenance windows: 2 · Detected outage events: 0 - By vendor impact label: critical 3, major 2, minor 6, none 1, unknown 1 - Previous day with incidents: [2025-12-19](https://rewindex.com/outages/2025-12-19.md) · Next: [2025-12-21](https://rewindex.com/outages/2025-12-21.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 | | --- | --- | --- | --- | --- | --- | | [Maven Central](https://rewindex.com/company/maven-central.md) | [search.maven.org is down](https://rewindex.com/company/maven-central/incidents/4q5r23kw10zs.md) | critical | 2025-12-20 01:34 UTC | 2025-12-20 01:49 UTC | resolved | | [Moonshot AI (Kimi)](https://rewindex.com/company/moonshot-ai.md) | [k2-thinking模型调用报错量异常](https://rewindex.com/company/moonshot-ai/incidents/w2c79x3rntz3.md) | critical | 2025-12-20 06:07 UTC | 2025-12-20 06:10 UTC | resolved | | [Help Scout](https://rewindex.com/company/help-scout.md) | [Docs site not loading](https://rewindex.com/company/help-scout/incidents/r2z2gpgc96r9.md) | critical | 2025-12-20 21:24 UTC | 2025-12-20 22:43 UTC | resolved | | [Scaleway](https://rewindex.com/company/scaleway.md) | [\[DC2\] Switch Down in room 205 - G4](https://rewindex.com/company/scaleway/incidents/m90lzpppz2h0.md) | major | 2025-12-20 07:41 UTC | 2025-12-20 18:30 UTC | resolved | | [Nebius](https://rewindex.com/company/nebius.md) | [Infiniband problems in fabric 7](https://rewindex.com/company/nebius/incidents/51b7wdnp6z6n.md) | major | 2025-12-20 17:02 UTC | 2025-12-20 18:46 UTC | resolved | | [Claude](https://rewindex.com/company/claude.md) | [Research unavailable for some teams orgs](https://rewindex.com/company/claude/incidents/3gvzshr7mqtr.md) | minor | 2025-12-20 00:51 UTC | 2025-12-20 01:35 UTC | resolved | | [Anthropic](https://rewindex.com/company/anthropic.md) | [Research unavailable for some teams orgs](https://rewindex.com/company/anthropic/incidents/3gvzshr7mqtr.md) | minor | 2025-12-20 00:51 UTC | 2025-12-20 01:35 UTC | resolved | | [Twilio](https://rewindex.com/company/twilio.md) | [MMS Delivery Delays and Failures To and From a Subset of Longcodes in Australia](https://rewindex.com/company/twilio/incidents/x38gn3k9djbt.md) | minor | 2025-12-20 09:33 UTC | 2025-12-21 08:04 UTC | resolved | | [Salesforce](https://rewindex.com/company/salesforce.md) | [Performance Degradation: Core Service](https://rewindex.com/company/salesforce/incidents/20003563.md) | minor | 2025-12-20 14:19 UTC | 2025-12-20 14:27 UTC | resolved | | [Firebase](https://rewindex.com/company/firebase.md) | [Firebase Hosting returning unexpected 431 errors on some POST requests to Firebase Functions rewrites](https://rewindex.com/company/firebase/incidents/51yhjchdin3mc1542mkd.md) | minor | 2025-12-20 17:00 UTC | 2026-01-06 20:30 UTC | resolved | | [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Failure to Twilio Phone Numbers in Mexico via Subset of Shortcodes](https://rewindex.com/company/twilio/incidents/s1zpwj6ds8hy.md) | minor | 2025-12-20 18:25 UTC | 2025-12-21 20:09 UTC | resolved | | [Sentry](https://rewindex.com/company/sentry.md) | [Sentry Login Issues](https://rewindex.com/company/sentry/incidents/nfshp9jvlh7b.md) | none | 2025-12-20 05:14 UTC | 2025-12-20 08:34 UTC | resolved | | [Gamma](https://rewindex.com/company/gamma.md) | [Issues with app loading](https://rewindex.com/company/gamma/incidents/cmjdlh7yb008d119ph6gmlkwy.md) | unknown | 2025-12-20 01:03 UTC | 2025-12-20 01:22 UTC | resolved | ## Still open from earlier days | Vendor | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Status | | --- | --- | --- | --- | --- | --- | | [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md) | [Issue connecting to Atlas Data Federation and Online Archive](https://rewindex.com/company/mongodb-atlas/incidents/1dywk9j2fhpn.md) | major | 2025-12-19 21:45 UTC | 2025-12-20 00:28 UTC | resolved | | [Snyk](https://rewindex.com/company/snyk.md) | [PNPM project testing and import degraded for SCM scans in regional environments](https://rewindex.com/company/snyk/incidents/kvg298lfrx88.md) | minor | 2025-12-18 07:11 UTC | 2026-01-06 07:14 UTC | resolved | | [Vonage](https://rewindex.com/company/vonage.md) | [Voice Quality Degradation to UK Landline & Toll-free Virtual Numbers](https://rewindex.com/company/vonage/incidents/xvf5dylwlgws.md) | minor | 2025-12-19 12:00 UTC | 2025-12-22 16:44 UTC | resolved | | [Salesforce](https://rewindex.com/company/salesforce.md) | [Feature Perf Degradation: Core Service](https://rewindex.com/company/salesforce/incidents/20003570.md) | minor | 2025-12-19 21:00 UTC | 2025-12-26 15:49 UTC | resolved | | [Twilio](https://rewindex.com/company/twilio.md) | [SMS Delivery Delays to XPhone Network in Israel](https://rewindex.com/company/twilio/incidents/vwg788h45k6p.md) | minor | 2025-12-19 23:23 UTC | 2025-12-20 03:01 UTC | resolved | ## Maintenance | Vendor | Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Status | | --- | --- | --- | --- | --- | --- | | [Aircall](https://rewindex.com/company/aircall.md) | [\[Scheduled\] Aircall Scheduled Maintenance — Saturday, December 20th 2025](https://rewindex.com/company/aircall/incidents/05fncrmr0tq2.md) | maintenance | 2025-12-20 03:00 UTC | 2025-12-20 05:00 UTC | resolved | | [Monday.com](https://rewindex.com/company/monday-com.md) | [\[Scheduled\] Scheduled Maintenance on the US Server](https://rewindex.com/company/monday-com/incidents/l7k2p261vbd4.md) | maintenance | 2025-12-20 07:30 UTC | 2025-12-20 08:00 UTC | resolved | ## Cite this 13 vendor-reported incidents started on 2025-12-20 (UTC) across 12 vendors, 5 labelled major or critical by the vendor. - Canonical URL: https://rewindex.com/outages/2025-12-20 - Citation: Rewindex daily outage roundup, “Outages on December 20, 2025” (2025-12-20 00:00 UTC). Archived by Rewindex: https://rewindex.com/outages/2025-12-20 (CC BY 4.0). - Markdown link: `[Rewindex daily outage roundup: Outages on December 20, 2025 (2025-12-20)](https://rewindex.com/outages/2025-12-20)` --- Canonical: https://rewindex.com/outages/2025-12-20 · Markdown: https://rewindex.com/outages/2025-12-20.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:10:18.157Z