Are any other users a member of that group she is assigned. Typically when you see a mandatory 2FA use, it's related to a permission setting for that group.
As for the second issue... you do note that it appears those are two different styles? Is it a coloration option that the style offers?
I'd honestly ask @Steve F or @Russ since it's probably related to that. If I was a betting person, I'd bet that the color for the icons are the same as the background in the editor.
That looks like some sort of plugin causing it, the arrows and additional options on it don't appear to be the default editor. If you'd like you can submit a ticket on our site with a login so I can take a look.