Some customers experiencing blurry image previews and download issues

Timeline

1. 11:04 UTC Slack status page · Reported Some customers experiencing blurry image previews and download issues
2. 11:04 UTC Slack status page · Update We're aware there's an issue where a subset of customers are experiencing blurry images which can't be downloaded, this is happening across all clients. We're actively working to understand the cause, scope, fix, or other details.
3. 11:29 UTC Slack status page · Update We've identified a likely technical trigger connected to a recent image-rendering service change. Current status and actions being taken: We have identified a likely technical trigger — a recent thumbnail-sharpening change to the image-rendering service. We're working to validate this, and are evaluating the rollback of the change as a possible fix. Estimated time to resolution: We are still confirming the technical trigger before a fix can be scoped. Scope: Affects a subset of customers across desktop, web, and mobile clients Current impact to end users: Images uploaded before roughly 9:30…
4. 12:52 UTC Slack status page · Update We have rolled back the code change that caused the issue in the production environment. Validation is in progress. Current status and actions being taken: We confirmed the technical trigger (a thumbnail-sharpening code change) and completed a rollback in the production environment after successfully testing the fix in the test environment. We are performing additional validations to confirm the fix was successful. Estimated time to resolution: We do not have and estimated time frame at the moment,. Scope: Affects a subset of customers across desktop, web, and mobile clients; Current impact…
5. 14:10 UTC Slack status page · Update T he earlier rollback did not resolve the issue, and investigation has been redirected to a file-serving problem rather than the thumbnail-generation change. Current status and actions being taken: The rollback of the thumbnail-sharpening change did not fix the issue. We have revised the technical trigger assessment to a file-serving problem, where the system returns near-empty successful responses instead of full image data. We are investigating file storage and access-policy changes, and gathering file details from affected customers to pinpoint the cause. Estimated time to resolution: No…
6. 15:24 UTC Slack status page · Update We have confirmed the technical trigger and are preparing a fix Current status and actions being taken: We confirmed the technical trigger — a code change that caused older file records to lose their stored file names, breaking retrieval of existing images. The team is preparing a targeted fix to restore file names correctly when reading older files. The affected files are expected to recover automatically once the fix is deployed. Estimated time to resolution: We don't have an estimate yet. Scope: Affects a subset of customers across desktop, web, and mobile clients. Current impact to end…
7. 20:00 UTC Slack status page · Update Some customers experienced blurry images that couldn't be downloaded across all clients, affecting files uploaded before a recent file storage update. We deployed a fix restoring proper file access, and confirmed it resolved the issue for affected customers. We apologize for how this incident affected you and your business. We will undertake a full investigation of the incident, establishing the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.
8. 20:00 UTC Slack status page · Resolved Resolved