In any form where you need to select a User, there's a feature which shows the "Most Recent User"-- the name automatically appears where you can just select that User.

But you can't clear it. You can't reset it.

So if Dynamics determines one name is the "Most Recent User," no matter how often you choose a different User you can't change what the default "Most Recent User" is.

Would love to be able to "Clear" the "Most Recent User."