Certain websites or site collections (specifically those with either no owner or having a blocked user be the owner) could not be staged to non-production environments.
Websites duplicated using the Site Factory API had no owner.
Attempts to sign in to the non-production Site Factory Management Console failed if the Site Factory Management Console was not the SAML identity provider.
In some circumstances, two-factor authentication failed to install correctly.
Attempts to create a website with invalid characters in the sitename failed with an error that did not indicate the invalid characters.
Site Factory 2.76 - June 6, 2018 | Acquia Product Documentation
Site Factory