Coffee Plants Requiring 3 Ashes to Fertilize / Stops accepting Ash Altogether

Looks like the fertilized coffee plant didn't save correctly. Quit/enter cave, come back with a withered coffee plant.

@Mday Yeah, I noticed that sometimes their animation get stuck too. Also...that "refusing to take more ash" bug seem to happen more consistently after i fertilize it once then save/quit XD

But yeah, it reverts to withered after saving and quitting again....but sometimes, after you come back from menu, everything else that were fertilized goes back to being unfertilized :C.

There definitely seems to be something wrong with how things are saved(/synced) like you said.

Somehow the same glitch happened to my grass farm. about 1/5 of my grass withered even within ice flingomatic range. The ice flingomatic ignore the withered grass. I can fertilize the withered grass, after that it will remain withered for the rest of the summer, and cannot be fertilized again. In autumn the glitched grass recovered by itself 

Coffee plants are backwards from other plants.. They wither in all seasons but the dry season. I think that could be the explanation for the fertilization issue.