sentinel amazon web service connector script fails

Hi there,

I'm trying to configure the AWS S3 (Preview) connector.

It provides a powershell script and detailed instructions which I think I've followed correctly.

However the powershell script fails with the following error:

https://github.com/Azure/Azure-Sentinel/tree/master/DataConnectors/AWS-S3
When running this script from powershell (on Windows 11, fully patched), the following errors are consistently seen, before the script quits:
.\ConfigAwsConnector.ps1
Starting ConfigAwsConnector at: 06/16/2023 21:13:33
Log created: C:\users\bob\aws\Logs\AwsS3-06162113.csv

To begin you will choose the AWS logs to configure.

Please enter the AWS log type to configure (VPC, CloudTrail, GuardDuty, CustomLog): CloudTrail

Checking AWS CLI configuration...

This script creates an Assume Role with minimal permissions to grant Azure Sentinel access to your logs in a designated S3 bucket & SQS of your choice, enable CloudTrail Logs, S3 bucket, SQS Queue, and S3 notifications.

Notes:

• You can find more information about the script in https://github.com/Azure/Azure-Sentinel/blob/master/DataConnectors/AWS-S3/README.md
• If a resource name(like: S3, Sqs, Kms) already exists, the script will use the available one and not create a new resource

Assume role definition

Please enter role name. If you have already configured an assume role for Azure Sentinel, use the same role name: Sentinel
Using role name: Sentinel
ConvertFrom-Json : Invalid JSON primitive: ROLE.
At C:\users\bob\aws\ConfigCloudTrailDataConnector.ps1:244 char:30

• $roleArn = ($roleArnObject | ConvertFrom-Json ).Role.Arn
  • CategoryInfo : NotSpecified: (:) [ConvertFrom-Json], ArgumentException
  • FullyQualifiedErrorId : System.ArgumentException,Microsoft.PowerShell.Commands.ConvertFromJsonCommand

Write-Log : Cannot bind argument to parameter 'Message' because it is null.
At C:\users\bob\aws\ConfigCloudTrailDataConnector.ps1:245 char:20

• Write-Log -Message $roleArn -LogFileName $LogFileName -Severity Verbo ...
  • CategoryInfo : InvalidData: (:) [Write-Log], ParameterBindingValidationException
  • FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Write-Log

To Reproduce
Steps to reproduce the behaviour:
Follow the instructions as presented here:
https://github.com/Azure/Azure-Sentinel/tree/master/DataConnectors/AWS-S3

See error as shown above.

Thoughts?

Has anyone had success with this script or did you give up and follow the "manual method"?

Thanks for your help.