App "My Office" twice in Start Menu

Since 15.12.2017 the Windows 10-app (Metro app) "My Office" exist twice in Start Menu. One app can be installed, the other Icon seems to be dead. I uninstalled but the second Icon remains.

Has onyone a solution to get rid of the second Icon?

Tried the following: Restart, deinstalling, sign off, sign in, sign in another user, but nothing seems to be helping.

An Ideas?

Problem is gone with last appupdate "Mail and Calendar" from Microsoft.