Trials of the Braves progress doesn't count if dead

[Gwaeron]

1) For both GC hunting log entries and Book of X entries, you have to be alive when the target monster is killed.
It's not the dungeon itself you need to clear, it's get the boss kill.

2) Lady Amandine appears in both Haukke Manor and Haukke Manor (Hard) and from others I've heard that both versions count toward the book.
So you can go for the level 50 version in this case...

I know this. "It's the same for hunting logs" really doesn't make the whole thing any better. I would love to go in and kill "just the boss" if that was possible. But it isn't.

[Nekodar]

I know this. "It's the same for hunting logs" really doesn't make the whole thing any better. I would love to go in and kill "just the boss" if that was possible. But it isn't.

*shrug*
I don't really consider it a bug myself.
Anyway, be happy it wasn't Copperbell Mines (hard) that you had to do again... That one appears in two books, and it's much more of a pain to get through in Duty Finder than any other dungeon (even counting pre-nerf Pharos Sirius).