Check spelling as you type doesn't work on libreoffice impress

Spellcheck is working fine on libreoffice Writer but not on impress 4.1.3.2, it works when i do F7, but it is not spelling as i type, despite the option “Check spelling as you type” is selected

launguage is portuguese

Would upgrading be a solution?
It works fine in 4.2.6.2.