Is it possible someone else was interacting with your medicine stack? I've had pawns walk to a farther stack because a closer one was reserved by a horse who was restocking it.

I just had the same thing happen, might be some sort of incompatibility with the stock up function Smart Medicine adds.

Same issue here, happens repeatedly, noone interacted with a stockpile. I am using CE and EPOE Forked.

Same here. Herbal medicine on transplants and nothing I do can stop it :(

I've noticed that colonists are prioritizing medicines from their inventory even when I manually set all limits to glitter world in this mod and the base game restrictions.

Very annoying to micromanage especially when multiple people are afflicted.

More I think about it; it may not be Pharmacist but instead something like Common Sense, Combat Extended, or some other mod changing how tending works.