Hi,
on Ubuntu 14.04: after upgrading to LibreOffice 5.4.0.3, the iconbar is scrambled:
- There are no icons anymore visible, just clickable texts.
- Some functions appear twice (like: font setting (bold, italic, underline))
See this screenshot: 
This behaviour is true at least for writer and calc.
How can I set it back in the condition before the upgrade?
Thanks in advance!
(edit: activated screenshot)