Sometimes, my AWS lambda function is not running using invoke async

I'm currently playing around with the latest version of the lambdaws popular library to upload and run functions on AWS Lambda in node.js.

The provided example works fine and my functions are working fine as well when I run them from the command line. My function basically takes an array of lat lon points and returns the corresponding google maps address.

From my AWS logs, it Seems like when I pass a big array as argument (couple hundreds points), the function doesn't even get invoked...

I get no error message, from lamdaws, and nothing happens in my AWS console.

Someone has an idea why ? Am I clear enough ?