Delayed shutdown of ECS Fargate tasks?

Hello,

I have a problem with delayed shutdown of ECS Fargate tasks, let me explain by example:

• in a Docker image at the very last line of the entrypoint script I have simple echo statement. It's being logged at 11:18:22.004
• I have another process, which is checking ECS tasks statuses on some events, an it's logged that at 11:18:30.023 (8 s later execution of last line of entrypoint) both last and desired statuses of the task are RUNNING

So my question is it expected that ECS Fargate takes more than 8 secs to shutdown task, specially considering that desired status also remains RUNNING after that time.