[ceph-users] radosgw lifecycle seems work strangely

ceph version 14.2.5 (ad5bd132e1492173c85fda2cc863152730b16a92) nautilus (stable) I made a bucket named "test_lc" and ran `s3cmd expire --expiry-date=2019-01-01 s3://test_lc` to set the lifecycle (2019-01-01 is earlier than current date so every object will be removed). Then I ran `radosgw-admin lc process`, the objects got deleted as expected, and the status from `radosgw-admin lc list` is "completed". However, if I upload some objects, and ran `radosgw-admin lc process` again, the objects were not deleted. Could you please tell me what the reason is and what I should do in this case? Thanks in advance!