base wrong objects names

I’m using Versão: ID da versão: Configuração regional: pt_PT.UTF-8 on Fedora22/Kde5.
I have a issue with dialog boxes, when a try to to insert/copy/paste a object (table,form…), it suggests a default, if I try edit or delete it doesn’t update the filed and turns the text to gibberish.
I have try with several fonts, same results.
Any suggestion?