I've become stuck after following one of the guides commonly seen online. It has worked quite well for me so far, and little by little I've been working towards "Apple Green" for my Chocobo. Unfortunately now that I'm apparently one step away (my Chocobo is Celeste Green), all I need to do is feed him Mamook Pears.

Unfortunately I have been feeding him again and again and after 14 pears the only message I am getting is "Ganymede devours the mamook pear." There are no more hints of color change or feather molting. The guide does not suggest this is a wall but, at least for me, I do not seem to be seeing any more progress with pears.

Any suggestions?