Errors titles with accents and spaces

Hello,
I’m having trouble with accents and spaces in titles. Can you help me?

Please look at the picture: https://www.dropbox.com/s/0ynazs6il570poy/Captura%20de%20tela%202017-05-24%2018.56.37.png

The accent issue you’re seeing is only in the navigation panel, right?

Yes, only in the navigation panel.

I cannot reproduce this in 9.3.1.

Hi, I installed the xwiki 9.3.1 and it worked. Tanks.