Api gateway response not up to date

I have a problem with the responses from the api gateway not being up to date.

My method schema looks like this:

Let me explain, the lambda returns me a list sought in the DynamoDB.

The DynamoDB and lambda response logs are good, i.e. it corresponds to the state of my list only when I have the return from an api tool (Postman, insomnia, curl, etc. ) the answer is not up to date. I still have results that I shouldn't have anymore.

I did not activate the cache in the gateway API, nor in the lambdas, nor in the client with no-cache requests.

I use the cognito service for api authentication with an id token and I deploy my IaC from terraform.

Do you have any idea where it could come from?

Thanks !