Katello packages available from foreman server are not the same version as those the client sees. Therefore they are uninstallable.
Versions match and are installable
Foreman and Proxy versions:
Foreman 1.19, unsure about proxy version
Foreman and Proxy plugin versions:
Other relevant data:
[e.g. logs from Foreman and/or the Proxy, modified templates, commands issued, etc]
(for logs, surround with three back-ticks to get proper formatting, e.g.)
This foreman environment was built from scratch last week and this is the first client I’ve actually connected to it.