Board Thread:The Last Sovereign Discussion/@comment-29984007-20180410151643/@comment-36134408-20190605210645

Your intuition was correct. The max we can get by the start of Ch. 4 is 61, and I got 59. Most likely I forgot a conversation in the 3AW and, since I replayed only from the start of Ch 4 and given everything done before as optimized as possible, I took for granted that I triggered all converstions.

Mystery solved!