Missing master dialogue lines, possibly being overridden by Sister Cassia?

Doing a Niko mission map today, noticed that only two of his dialogue lines showed up in chat even though I picked up three sulphite piles.

Unfortunately I don't recall how many times the actual voice lines were played.

Screenshot of in-game chat:
https://i.imgur.com/euu2YUB.jpg

Excerpt from Client.txt:
https://pastebin.com/raw/AB51qAsa