Create study chapter from broadcast game

We can create a study chapter from a game URL. However when I try this with the following game from a broadcast, it doesn't work. Do you have any suggestions?

lichess.org/broadcast/krefelder-sommeropen-2022/runde-1/f2m0kuyS/uSJCFUMf

Did you try "clone"? You can reach that by clicking the "share and export" icon right under the board.