Hi @arag00rn! Thanks for the reply and additional details!
Can you go ahead and submit a support ticket with a link to the build that didn’t correctly work with this format:
"${AWS_ECR_ACCOUNT_URL}/${AWS_RESOURCE_NAME_PREFIX}:${CIRCLE_SHA1}"
That way we can take a look at your specific setup and provide some additional information. Feel free to also include a link to this post so we can reference it as well. Thank you!