Did anyone experience around or after July 18, 2024 Lightsail CPU and burst availability resources being consumed by processes not related to actual traffic? If so, how did you solve it?

Our application is WordPress running in lightsail on an Ubuntu stack, Route 53 controls DNS, we have a load balancer out front and cloud front connected. On approximately July 18 having made no changes to our application or environment, we began to see a repeating cycle of between 62 to 90 minutes, that consumes CPU resources, eventually using up all available burst capacity. Of course because Lighsail doesn’t auto scale, the site was going down intermittently when resources ran out. So as a temporary countermeasure we spun up another instance and added it to the load balancer which is keeping things running for now. Screenshot of the resource metrics cycle Note that we are certain that pattern is not following changes in traffic to the site. This pattern occurs even with no active sessions or traffic to the site. Did anyone see a similar experience beginning around July 18th And if so could you share what you learned about it and how to overcome it?