Prelisten In Place

Prelisten in place doesn’t seem to be working for me in GA5. I play a pattern, select the Instruments tab. I select the pad I want to audition and then in the loader pane (right side) I go to instruments. I filter to the drum I want and click prelisten in place at the bottom. When I select a drum, the same drum continues to play in the pattern.

Isn’t it supposed to play the drum I selected in the pattern?

Is tis a bug or am I doing something wrong?