Here's my favorite UI/UX bug which has been there for years: In Calendar (macOS) create a new event. In the start or end time, type in the Minutes field, but

Here's my favorite UI/UX bug which has been there for years: In Calendar (macOS) create a new event. In the start or end time, type in the Minutes field, but type slowly. For example, type "2" pause a bit, then type "1" If there's more than ~300msec pause between the two keypresses, the 2 changes into "02" and then the 1 overrides it, so you end up with "01" instead of 21. Works with any two kepresses. Same problem in the date fields. Completely wrong, and super bad for accessibility.