S3 trigger to create thumbnail Tutorial doesn´t work, responds 202 but doesn´t do the job

I have been asked to complete tutorial from here: https://docs.aws.amazon.com/lambda/latest/dg/with-s3-tutorial.html I go step by step, and on 7th step when i invoke the function I get

$ aws lambda invoke --function-name CreateThumbnail --cli-binary-format raw-in-base64-out     --invocation-type Event       --payload file://inputFile.txt outputfile.txt
{
    "StatusCode": 202
}

Function supose to create thumbnail in one bucket from the image from another one but it does nothing.

The only differences i do are:

1. when running aws --version i get aws-cli/2.7.18 Python/3.9.11 Windows/10 exe/AMD64 prompt/off instead of aws-cli/2.0.57 Python/3.7.4 Darwin/19.6.0 exe/x86_64

2. I cannot run zip command so i pack in manually into function.zip, i tired both: to pack whole folder and content inside only

3. In the inputFile.txt i tried to change sourcebucket and key only as they asking, than i tried as well with changing etag

4. I try to complete step 8 and 9 anyway but it doesn´t trigger anything

How can I accomplish this task?
Output file is being created but it´s completely empty, i cannot check the function in the AWS console because it says it´s too big.