Your device is set to automatically delete verification codes after using AutoFill.
replyhttps://www.macrumors.com/how-to/auto-delete-verification-co...
Though presumably they are one time only. Not sure if this is achieving anything?
replyWhat do you mean? It's useful because they are one time only. It saves you the trouble of manually deleting them.
replyVerified - this is enabled on my phone.
replyI (think I) like this, now that I know it's there.