Guild Wars 2

Hello, just finished collecting and being rewarded with the “completed baby book” Cymbel asks for, but when i try and deliver it to her she still asks for the book even though its in my inventory, cannot get the tiger training guide to keep going in the collection, any advice is appreciated.

Edit: Even after her event of rescuing the pups, the bug is still happening.

You have to have another crude leather book in your inventory to gain the Tiger Training Guide. This is the book she wants and asks for in her previous dialogue, when you have the active Baby Book collection.
You ask her about teaching the cubs, she requests another book to note things down in, which becomes the Tiger Training Guide.