Webhook delivery has remained stable and within normal performance levels for several days, with no further occurrences of the previous delays. All webhooks are now being processed and delivered as expected.
To address the issue, we have:
Implemented configuration changes to eliminate the identified cause of the degraded performance
Added extended monitoring and alerting for webhook delivery to detect and respond to similar issues much faster in the future
This incident is now being closed, and webhook delivery is considered fully operational.
Thank you for your patience while we worked to resolve this.