Has anyone had issues with odd drug use after the update?

[Kilvas]

I've had a colony running for a few real world years, and I've never had a colonist drunk or overdose on this schedule. Currently have one pawn who drank until he passed out over a week, and another getting addicted to psychite tea. Has there been a change in something I'm not aware of, or does this sound like a bug? Beer set to once a day max, at 40% mood, tea set to once every two days. All colonists are set to this, but only 2 seem to be affected so far.

[Alenerel]

If they are younger than 18 year old, their body size is smaller than normal and the doses to get addiction are fewer.

[Kilvas]

Both of these colonists are much older than 18. It seems to have stopped itself? Taking them off the schedule then putting them back on looks like it has fixed it anyway.