The gardening Evolve All option only counts as one evolve for the Freelance Botanist aspiration Evolve Plants step instead of however many plants were actually evolved. I use no mods.
Ideas
I ran into this evolve issue this morning. I have a sim with the Freelance Botanist aspiration who is in the gardener career. There were three plants to be evolved in her greenhouse and she's at the point in the aspiration where she needs to evolve five plants. All three plants had the evolve animation, but it only counted as one of five evolved.
Play on PC, no mods or cc ever used.
