[HTTP API] API doesn’t include a route with path /*

I am trying to use the HTTP API GW feature implemented here: https://github.com/serverless/serverless/pull/7274.

The problem is that the AWS Console for my lambda seems to say that there is an error with my API GW. The endpoint does work, and it reaches the lambda function just fine. So, is this a bug with AWS Console, AWS HTTP GW or with serverless?

Here is my serverless.yml

provider:
  name: aws
  runtime: nodejs12.x
  region: us-east-1
  stage: ${opt:stage, 'dev'}
  timeout: 10
  memory: 128

functions:
  simpleHttp:
    handler: build/handler.simpleHttp
    events:
      - httpApi: '*'