Do not manually delete or alter AWS resources not specified in the documentation at https://docs.datomic.com/cloud/operation/deleting.html#sec-1, as this can result in undesirable behavior and/or failure of other Datomic systems in your AWS account.
If you encounter unexpected behavior related to stack creation or deletion, please contact Datomic Support (https://www.datomic.com/support.html) for assistance.