On Thu, Oct 27, 2022 at 1:49 PM ada per <adaper3@gmail.com> wrote:

# dnf downgrade ansible-core-2.13.3-1.el8.x86_64
Packages for argument ansible-core-2.13.3-1.el8.x86_64 available, but not installed.
Error: No packages marked for downgrade.

The package version should be the target one

https://dnf.readthedocs.io/en/latest/command_ref.html#downgrade-command-label

"Downgrades the specified packages to the highest installable package of all known lower versions if possible. When version is given and is lower than version of installed package then it downgrades to target version. "

dnf downgrade ansible-core

should be the correct command