Why are the AWS Account tags missing?
To ensure the account tags are being ingested into the platform, check that the IAM policy associated to your consolidated billing (master account) account has the following permissions:
organizations:ListAccounts
organizations:ListTagsForResource
Account Tags work differently than other assets. Account tags can only be collected via the master account.
Note: It is not required, but it is a good practice to add the DescribeOrganization permission to the linked accounts to avoid AccessDenied errors on Cloudtrail. The platform runs DescribeOrganization on the linked accounts to find out what the master account is.
You can use the "Setup=>Account=>AWS Account API Status" page to view any configuration errors.