New Excel formulas not working in Portuguese language (Groupby, Pivotby, etc)

Hi everyone.

Since today, the new formulas started to not work in my office 365. I use Portuguese (Brazil) version and when i entered in excel today it shows formulas like this: "=_xlfn.GROUPBY(..."

Also, when i write "=Agruparpor(" the excel don't recognize it as a available formula. Excel don't show "Agruparpor" as a formula.

The problem started today, it was normal yesterday, i'm with inside and beta channel activated.

Can u guys help me to solve it?

Btw, those new formulas + slicers crash excel when applied together while using Portuguese version.