HubSpot: UI extensions from integrations are not loading
Affected components: Sales ToolsCRMIntegrations
Timeline of updates
- investigating
We are investigating an issue impacting integration UI extensions. We will provide an update when we have more information.
The information on this page reflects our understanding of the incident and impact at the time of the update.
- resolved
Between 11:47 AM (UTC -05:00) and 01:05 PM (UTC -05:00), customers in all regions experienced issues loading app cards and UI extensions in HubSpot. This was caused by a load balancer misconfiguration. As of 01:05 PM (UTC -05:00), our app cards and UI extensions are working properly and the incident has been fully resolved. No data was lost.
HubSpot conducts a thorough review after each incident to understand the cause and prevent it from happening again. Learn more about HubSpot's commitment to reliability at www.HubSpot.com/reliability.
The information on this page reflects our understanding of the incident and impact at the time of the update.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
3c5aeb6609db4d43…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: none) posted by HubSpot, started 2026-01-20 17:43 UTC, resolved after 34 min, 2 update(s).
- Title
- UI extensions from integrations are not loading
- Vendor
- HubSpot
- Date
- URL
- https://rewindex.com/company/hubspot/incidents/slg8k7fsd5yx
HubSpot profileRecent HubSpot incidentsAll outages on January 20, 2026HubSpot in January 2026MarkdownJSON