If you attempt to layer installations, the later installations may fail as pre-existing configurations are not detected. Layering with default options results in no issues. The problem arises when the user chooses to add additional configuration options in the earlier layers. For instance, if a user sets a custom password vault in Red Hat JBoss Fuse Service Works and then tries installs Red Hat JBoss Data Virtualization and attempts to create a password vault for it as well, this will result in a failed installation for the latter, since the vault already exists.