I can't Connect to Amazon S3 well.
I'm referencing and following this document: https://docs.databricks.com/gcp/en/connect/storage/amazon-s3

But I can't access the S3 well.

I believe the credentials are correct because I have verified that I can access S3 via boto3.

However, I'm using instance profile to access other S3s. 
Could this be the cause?

Thank you.