If you sign into an Adobe app as an enterprise user, either the sign-in fails or it is not completed.
This issue occurs, if your enterprise credentials are stored in the macOS Keychain for some other server (such as network sharing server) on your computer.
Resolution
Delete the Enterprise-related keychain items for other servers of the same domain (such as a network sharing server) and restart your computer.
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Twitter™ and Facebook posts are not covered under the terms of Creative Commons.