Running "rmlint --xattr" is throwing these warnings...
WARNING: failed to getxattr for blah blah blah: Attribute not found

I assume these warnings are normal when running for the first time as related extended attributes are not there yet but I expect these warnings to stop on subsequent executions on the same set of files but they do not.
I even checked the files with "xattr -l " and it correctly shows the rmlint user.rmlint.blake2b.cksum and user.rmlint.blake2b.mtime extended attributes which means that rmlint was able to successfully write the extended attributes for the files but then why rmlint is throwing these warnings?

This is on macOS Mojave with APFS filesystem. rmlint was installed using brew.