Why can't I bookmark games anymore?

The star in the top right corner of the list of games in my profile no longer exists.

Is there any way to save a game or bookmark it anymore?

You can still do it by going into the game and then clicking on the star that appears on the top left when you hover over the names.

The star is invisible but will show up when you set your moise in the right up corner of the time-control and game-type square at left of the board. It's indeed weird. Should be clearly visible.