Getting "InvalidSignatureException" when trying to run "aws ecr-get-login-password" command in Azure DevOps pipeline shell

I want to build and deploy Docker images from Azure DevOps to AWS ECR.

I followed this tutorial - https://www.devguides.dev/how-to-build-and-deploy-docker-images-from-azure-devops-to-aws-ecr/

I keep getting the following error: An error occurred (InvalidSignatureException) when calling the GetAuthorizationToken operation: The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.

I have manually checked the and ran the "aws ecr-get-login-password" command locally using the same AWS access key and secret and it does return a temp password so I know that the permissions and keys are correct.

I verified that I set the variables correctly and that they are read by having them printed out for me to view in the Azure bash shell - they were correct.

Any suggestions?

Do I need to provide AWS log in info somewhere else in Azure?

Below is the pipeline build yaml :

trigger:
  branches:
    include:
    - build-and-push-azure-to-aws

pool:
  vmImage: 'ubuntu-latest'

variables:
  - group: dev
  - name: DOCKER_REPOSITORY
    value: $(AWS_ACCOUNT_ID).dkr.ecr.$(AWS_REGION).amazonaws.com/$(DOCKER_REPOSITORY_NAME)

steps:
- script: |
    aws ecr get-login-password --region $(AWS_REGION) | docker login --username AWS --password-stdin $(AWS_ACCOUNT_ID).dkr.ecr.$(AWS_REGION).amazonaws.com
  displayName: 'Login to AWS'
  env:
    AWS_ACCESS_KEY_ID: $(AWS_ACCESS_KEY_ID)
    AWS_SECRET_ACCESS_KEY: $(AWS_SECRET_ACCESS_KEY)

- task: Docker@2
  displayName: Build docker image
  inputs:
    repository: $(DOCKER_REPOSITORY)
    command: buildAndPush
    Dockerfile: Dockerfile
    tags: |
      latest

Here is the error I get :

==============================================================================
Task         : Command line
Description  : Run a command line script using Bash on Linux and macOS and cmd.exe on Windows
Version      : 2.164.2
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/utility/command-line
==============================================================================
Generating script.
========================== Starting Command Output ===========================
/bin/bash --noprofile --norc /home/vsts/work/_temp/043d91c2-1246-45f3-909b-6594561cfbf1.sh

An error occurred (InvalidSignatureException) when calling the GetAuthorizationToken operation: The request signature we calculated does not match the signature you provided. Check your AWS Secret Access Key and signing method. Consult the service documentation for details.