Why does Timothy Cardinal Radcliffe not have an episcopal lineage?

On the main site, why does Timothy Peter Joseph Cardinal Radcliffe not have an Episcopal Lineage on his page?

Cardinal Radcliffe was a Cardinal Elector in the Conclave of 2025, but he is not a bishop.
When he was created a Cardinal in 2024, he requested and was granted a dispensation from being consecrated a bishop by Pope Francis.

Thus no episcopal lineage.