I have noticed this happening a few times when there’s a new program version of avast. Sometimes when the program is done downloading and installing through the avast program itself, it removes the password to enter the menu for some reason and I have to reactivate it. This happened over different windows installations and so avast installs as well.
Is this normal behaviour? It doesn’t happen with every avast program update, but here and there. Like the new update today removed the password.