Gitlab 5.1 Issue with menu

Created by: jdeverdun

Hello everyone,

I've got just upgraded gitlab from 5.0 to 5.1 using the update guide. Everything worked fine, no error during the installation. But when I'm logging, the main menu looks really weird. Like if some css is missing.

I've got this on every screen.

Everything else is just fine (push events etc...).

Thanks for your help.

Here is some screenshots.