Error With Customers Email Ffter Upgrate To 4.11.5


After updating from v.4.11.2 to v.4.11.5 all orders from customers have email like : where fgxbvc is is theit last name.

first I supposed it it something related with Profile fields >> Contact information >> profile >> Show / Required but both are checked . I even create email address field for Billing address and another shipping address and are all checked...but same situation

somebody knows why this is happening ?

Thank s

Does Social Login addon active in your store??