I’ve noticed that these are often not counted, and I’m not getting the rewards when a certain number of new plants are discovered in each category, and sometimes can’t access new land because of this (e.g. it says I have 96 plants and need 98 to discover, I discover 2 more, but the total doesn’t tick over, and stays at 96).
I’ve found daily task and special event reward counters sometimes don’t work either.