So, I recently ran into a bit of a conundrum today while working on my breeding project, for which I need to boost several Lionesses to "Goddess" fertility (100%).

This girl is one of two lionesses that gave me the prompt "You cannot boost this lioness's fertility anymore" when I attempted to use a second Chasteberry. She's naturally a "Good" fertility (88%). I had second lioness sharing her fertility range exhibit the same problem. Both had only consumed one Chasteberry before I ran into this issue.

What's more is that I had five lionesses with naturally "High" fertility (90%+), and they were boosted to 100% using Chasteberries as expected. Each of these naturally "High" lionesses showed that fertility items had been used, and the one I revealed did display a fertility boost under 10% next to her current percentage.

I checked the wiki and the site for any clues, but I didn't come across anything. Is there something I've overlooked?