The code is on the wrong screen again
You are signing in on your Mac and the code arrives on your phone. Normally that means glancing back and forth and typing carefully so you beat the timer. Copy the code on your phone instead, and it is on your Mac ready to paste.
The same trick works for confirmation numbers, tracking codes, and anything else that lands on one device but is needed on another.
One-time codes are meant to be temporary. Turn on auto-delete or clear your history so they do not stick around.
