BackOffice Label aren't displaying the correct text

Questions
1

The image shows a login screen with fields for email and password, a "Forgotten password?" link, and a blue "auth_login" button highlighted by a thick red border. (Captioned by AI)
The image shows a login screen with fields for email and password, a "Forgotten password?" link, and a blue "auth_login" button highlighted by a thick red border. (Captioned by AI)571×509 6.52 KB

Umbraco 16 isn’t displaying the text it’s supposed to.
Sometimes the dropdowns aren’t visible.
Does anyone know a solution to this?