Reason for disappearance of stored login info

I answered questions and pointed out difficulty of being able to assist on the little info you gave.

For example, you didn’t mention if you had just added anything to your device or even done something like clear cookies when this happened. Whether you’re using extensions. All sorts of information missing. So when you’re asking what conditions can make your situation happen, it’s an open ended question that has no reasonable answer with the limited info you provided.

Nothing I said had anything to do with that. I asked for more information to try to get a better understanding of what’s going on and to try to assist. I also then tried to address phrasing to make sure I can understand what you’re saying correctly.

Helps if you link to any references. Did they ever get a solution or figure out what caused the problem for those cases you’re saying that have existed?