Cloudformation update error and rollback error: 'ECS Deployment Circuit Breaker was triggered'

Hi,

we had an application running in our development environment for a while just fine. Now I just tried to update the stack with the was cli: cdk synth --all -c config=prod --profile prod cdk deploy --all -c config=prod --profile prod

it tried to update the stack, but aborted the update and rolled back. However also the rollback now shows: "UPDATE_ROLLBACK_FAILED" in the cloudformation stack.

The problem ist the AWS::ECS::Service Which gave me the: Resource handler returned message: "Error occurred during operation 'ECS Deployment Circuit Breaker was triggered'." (RequestToken: 52b9bd9c-438c-1cfa-0f5b-db848cde6b6b, HandlerErrorCode: GeneralServiceException)

As the app was already running fine, before and is also running fine currently, I don't think it has anything to do with the application not being healthy or anything. The appliaction or docker code has not been changed.

I only wanted to increase the cpu and memory of the FARGATE ecs servers: ecs.FargateTaskDefinition cpu: 1024 -2048, memoryLimitMiB: 2048 -> 4096 and ecs.ContainerImage.fromEcrRepository cpu: 512 -> 1023, memoryReservationMiB: 256 -> 512,

also the aws cloudformation continue-update-rollback resulted in the same problem.

How can i best fix this or find out where the problem is?

Thank you.