To Change an email address/user name for an entry, one must delete the entry to do it. WHY?

Why must I be forced to use old user names to access new user names? Why does the email address/ user name not change everywhere? AT the bottom of the IOS screen I need to select my old user name for 1password to fill in my new email address/username. This has been going on for years now. I assume I can delete the entry and start over to change the username and password. I guess this is the correct method to change an entry, deletion. Otherwise the old email address /username will be there until the day of my death. I have changed my email address used for most things. My old email address still shows up on the bottom of the screen. Maybe it just takes several years to automatically update. The one I most recently noticed was last updated in September 2020. 6 months ago. But there are no 1password entries that reflect the current user name at the bottom of the iOS screen.

I have edited this because I have done some additional testing even after deleting the entry and permanently loosing my password, my old user name still comes up at the bottom of the screen but clicking on it no longer retrieves anything.

So, where does this text come from?

This was posted before after verifying my email address; it said I had 1 hour to edit it, I logged into my Mac to fix typos, and my post doesn't exist. The tone of my posts get worse every time I am forced to repost.

1Password Version: 7.7.1
Extension Version: iOS > Where is it listed?
OS Version: 14.4.1
Sync Type: iCloud

After some additional research, I have found that I just need to click the the key in the bottom right and the one I choose becomes the default, whether or not they point to the same entry. Every time you change the username on an entry, a new entry is created on that list that pops up when you press the key in the bottom right. As long as you don't create another entry, you can have 6 or 7 different items to click on that all point to the same entry. And whatever is in the entry is populated in the fields; there is no correlation between the username you click on and the one that is populated in the user name field. This list never gets reduced.

Also, if an old entry points to an entry in the trash it will still retrieve the username and password until the entry is removed from the trash. After the trash has been emptied, the item is still in the list but clicking on it does nothing.

Each item in the list for a particular website can point to a single 1password entry. Another item in the list is added every time you change the user name in the 1password entry. So when you click on the little key, eight items are listed they all point to the same entry in 1password. Regardless of what username you click on only the username that’s in the actual entry shows up. I just created a random user names and now when I go to that particular website it shows eight different options. If I delete all entries for that website in 1password and Also empty the trash. The list doesn’t change but none of the entries point to anything, so clicking on any of the eight Entries results in nothing being filled in. The default one is always the last one clicked on regardless of whether it has filled in anything or not. I have no idea where this list is stored I don’t know if it’s Apple or 1password but it is a list that only grows there is no way to remove items from the list. They all point to specific Entries in 1password whether an entry is in that spot or not. I assume each entry must have some kind of hidden identifier. Like an inode in Unix. Regardless, I don’t have the problem anymore because I always create a new default by clicking on the little key. But I have gotten that list when you click on the little key to be incredibly long. I haven’t gotten to the point where you would need to scroll, I’m kind of curious what would happen if I got like 20 items in that list. All it takes is changing the username in the single 1password entry and it creates a new entry in the auto-fill extension. Obviously that data is stored somewhere; I have no idea where. It is not in “saved form details”, I had originally thought I would find it there. I don’t think it is any data that is stored in the cloud. I don’t think I have anything that happens like that in macOS “Big Sur”. This is not so much of an inconvenience for me anymore as it is a curiosity. It’s just always strange to click on one username and have a different one show up. There is no correlation between the username you click on in the extension and the username to that gets populated into the field.

I'm sorry, I kind of meant that last comment to be sarcastic. But, I tested it and YES after every time you change a user name you must go to Settings > Password AutoFill and wait until data has updated. I would have thought that this would have been automatic after making a change to a 1password Entry. This issue is solved. Though, I am not sure why it works this way. It seems to me that autofill should be updated when the entry is updated automatically.

I can attest to the fact that this never updates by itself. Months had gone by since I updated the user names and the old user names were still in the autofill list.