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Outage in Cornerstone

Intermittent Errors and Timeouts Observed on US Swimlanes

Resolved Minor
June 03, 2026 - Started 11 days ago - Lasted 8 days
Official incident page

Incident Report

Summary AI Generated

Cornerstone customers on US swimlanes experienced intermittent errors and timeouts while navigating the application, with users reporting slower page load times and difficulty working within LMS pages. The issue persisted for approximately 8 days (192.9 hours) and was resolved through collaboration with AWS, including a network update that addressed the underlying connectivity problems. After several days of monitoring with no recurrences, the incident was marked as resolved with a root cause analysis to follow.

Some customers on US swimlanes may experience intermittent errors and timeouts while navigating the application. We are actively investigating as a top priority. We will share updates as we make progress.

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Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 06/11/2026 05:36PM

After a few days of monitoring and no recurrences we are considering this issue Resolved. A Root Cause Analysis will be shared within 7-10 business days.

MONITORING 6 days ago - at 06/08/2026 07:19PM

As a result of our continued investigation with AWS, we have implemented a network update to further address the intermittent errors and timeouts. Initial results following the change are positive, and we are continuing to actively monitor the environment to confirm sustained stability. If any new occurrences are identified, we will investigate further and provide additional updates as appropriate. We appreciate your continued patience and understanding as we work toward full resolution.

MONITORING 6 days ago - at 06/08/2026 05:38PM

The intermittent timeouts and errors have subsided, and we are continuing to urgently investigate the root cause with AWS as a top priority.

INVESTIGATING 6 days ago - at 06/08/2026 03:31PM

We are actively investigating this issue with AWS as a top priority. While the investigation is ongoing, users may continue to experience intermittent errors and timeouts while navigating the application. We will continue to provide regular updates until the issue is fully resolved.

MONITORING 6 days ago - at 06/08/2026 03:01PM

We observed reports of increased latency and intermittent timeouts impacting only the US SL2 Production environment. Some Customers may have experienced slower page load times while navigating or working within LMS pages.

Our Engineering teams identified the issue and implemented a fix. Based on current observations, the impact appears to have subsided. The incident was observed between 5:38 AM PT and 5:44 AM PT. We will continue to closely monitor the environment to ensure ongoing stability.
Please note that this incident is not related to the intermittent timeout issue that was addressed on 06 June 2026. Engineering has confirmed that this was an isolated and short-lived backend performance event.

Further updates will be provided as needed. Thank you for your patience and understanding.

MONITORING 7 days ago - at 06/08/2026 04:39AM

Following the deployment of the fix, we have continued to closely monitor the environment and have not observed any further issues at this time.

We will continue monitoring throughout the day to ensure system stability and will provide additional updates if there are any significant developments.

MONITORING 8 days ago - at 06/07/2026 06:04AM

A fix has been implemented and we are monitoring the results.

IDENTIFIED 9 days ago - at 06/05/2026 07:33PM

We are targeting a fix during Saturday's regular maintanence window. Following the maintenance, we will closely monitor the results for a period of time to ensure stability.

INVESTIGATING 9 days ago - at 06/05/2026 01:07PM

We are actively investigating this issue with AWS as a top priority. While the investigation is ongoing, users may continue to experience intermittent errors and timeouts while navigating the application. We will continue to provide regular updates until the issue is fully resolved.

INVESTIGATING 9 days ago - at 06/05/2026 09:56AM

We are actively investigating this issue with AWS as a top priority. While the investigation is ongoing, users may continue to experience intermittent errors and timeouts while navigating the application. We will continue to provide regular updates until the issue is fully resolved.

INVESTIGATING 10 days ago - at 06/05/2026 05:31AM

We are actively investigating this issue with AWS as a top priority. While the investigation is ongoing, users may continue to experience intermittent errors and timeouts while navigating the application. We will continue to provide regular updates until the issue is fully resolved.

INVESTIGATING 10 days ago - at 06/05/2026 03:29AM

We continue to work closely with AWS to determine the root cause and resolve. This is a top priority for our teams and we will continue to share updates until full resolution has been determined.

INVESTIGATING 10 days ago - at 06/05/2026 01:30AM

We continue to work closely with AWS to determine the root cause and resolve. This is a top priority for our teams and we will continue to share updates until full resolution has been determined.

INVESTIGATING 10 days ago - at 06/04/2026 11:31PM

We continue to work closely with AWS to determine the root cause and resolve. This is a top priority for our teams and we will continue to share updates until full resolution has been determined.

INVESTIGATING 10 days ago - at 06/04/2026 09:33PM

We continue to work closely with AWS to determine the root cause and resolve. This is a top priority for our teams and we will continue to share updates until full resolution has been determined.

INVESTIGATING 10 days ago - at 06/04/2026 07:14PM

We are actively investigating this issue with AWS as a top priority. While the investigation is ongoing, users may continue to experience intermittent errors and timeouts while navigating the application. We will continue to provide regular updates until the issue is fully resolved.

INVESTIGATING 10 days ago - at 06/04/2026 05:14PM

We are continuing to investigate this issue. Until a fix is implemented, users may continue to experience intermittent errors and timeout issues while navigating the application.

INVESTIGATING 10 days ago - at 06/04/2026 02:54PM

Our Engineering team continues to investigate the root cause of the issue and is actively reviewing diagnostic data from affected environments. While the investigation remains ongoing and no additional findings are available at this time, users may continue to experience intermittent errors and timeout issues while navigating the application. We will provide another update as soon as new information becomes available.

INVESTIGATING 10 days ago - at 06/04/2026 11:56AM

Our Engineering team is actively investigating the root cause of the issue. Until a fix is implemented, users may continue to experience intermittent errors and timeout issues while navigating the application.

INVESTIGATING 10 days ago - at 06/04/2026 08:36AM

Our Engineering team is actively investigating the root cause of the issue. Until a fix is implemented, users may continue to experience intermittent errors and timeout issues while navigating the application.

INVESTIGATING 11 days ago - at 06/04/2026 04:57AM

Our Engineering team is actively investigating the root cause of the issue. Until a fix is implemented, users may continue to experience intermittent errors and timeout issues while navigating the application.

We will keep you informed of our progress and provide updates as soon as additional information becomes available.

INVESTIGATING 11 days ago - at 06/04/2026 02:55AM

Our Engineering teams continue to investigate the root issue. Users may experience intermittent errors and timeouts while navigating the application until a fix has been implemented. We will continue to share updates as we progress with our review.

INVESTIGATING 11 days ago - at 06/04/2026 12:57AM

Our Engineering teams continue to investigate the root issue. Users may experience intermittent errors and timeouts while navigating the application until a fix has been implemented. We will continue to share updates as we progress with our review.

INVESTIGATING 11 days ago - at 06/03/2026 09:55PM

Our Engineering teams continue to investigate the root issue. Users may experience intermittent errors and timeouts while navigating the application until a fix has been implemented. We will continue to share updates as we progress with our review.

INVESTIGATING 11 days ago - at 06/03/2026 06:38PM

We are continuing to investigate this issue as a top priority. Our teams remain actively engaged and will provide additional updates as more information becomes available.

INVESTIGATING 11 days ago - at 06/03/2026 04:44PM

Some customers on US swimlanes may experience intermittent errors and timeouts while navigating the application. We are actively investigating as a top priority. We will share updates as we make progress.

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