The Startpage (7 days and overdue) works only in english.
in the settings I chose "German". After some hours the filter for 7 days and overdue didn't work. I can only see all projects.
In English it works perfect.
Please confirm - you have typed (überfällig, 7 tage) into the search box while using the German version of the app and it doesn't work? Does it work when you click on the "7 Tage" link?
Also, please clarify - how are you accessing Todoist? Through the web, mobile, plugins, add-ons? If through the web - what browser are you using?