That would be an unusual glitch, and one that wouldn’t be able to reach the patient, especially not in my specialty where we don’t have pumps. More likely is the resident gives a verbal instead and doesn’t get the benefit of allergy / dosing warnings. Tbh it’s actually not uncommon for the doctor to accidentally order a new scheduled dose and forget to discontinue the old dose just through pure human error but that’s pretty easy to catch because it looks hella weird in the MAR and most of it pops an error or at the very least pharmacy refuses to approve it.