Hi, this has happened to me a few times now, where I go into my data and all the fields I have created on my User type are now named as my email address.
So, instead of a First name field type text, or last name field type text, it has two fields called ##@gmail.com type text (and 2 other fields, also called that, and even the defaults have been changed)
These are the field names that have changed, not the data entries.
It’s annoying to have to change them back to what they were again - especially as I have to work it out and don’t want it to corrupt what data and workflows are already written…