"Lobby Guard and BackSeat Driver Scientist Banter" captions will not shown

“Lobby Guard and BackSeat Driver Scientist Banter” captions will not shown.

these captions described as “am.grd02.callandanswer01” and “am.sci01.callandanswer01” in “closecaption_english.txt”.
but game calls “vo/c1a0a/grd02_callandanswer01.wav” and “vo/c1a0a/sci01_callandanswer01.wav”.