Looks to me like the bug I have described in this topic: Cannot update puppet-agent to 6.24.0 on foreman servers
All new RPMs synced since the installation of Katello 4.1.1/pulpcore 3.14 are missing the filelists. Your errors look a lot like that…
Some of the missing files are in the coreutils package. You can check the package on the foreman - content - packages page. Look for the latest version in CentOS 8 and check the files contains. If the list is empty you are hitting the bug.