I noticed that the items list is broken in the small mobile view since the update to bootstrap 4 beta. This seems to be a browser independent issue. This is how it looks for me now:  This is how it used to look: 
Activity
modularcoder commentedon Sep 6, 2017
@tilmanbremer big thanks for the report, haven't noticed this.
I'll apply the fix and will make a new release soon.
modularcoder commentedon Sep 6, 2017
@tilmanbremer fixed now in the latest patch release
https://github.com/modularcode/modular-admin-html/releases/tag/v1.2.1
Thanks for reporting!