When i was adding ascension points to my gunwitch the book drop has 0 points of duration and 0 to increase with the ascension points idk what happens here Repro Chance: 60% Steps for Bug Repro:
Have a gunwitch and ad least 1 or 2 ascension levels
Add ascension points to Book Drop Duration
Look that you dont have any increase to the duration
Having the exact same issue. Dropped 16 points into it and it still won't increase.