CSV Import not working on Mac App

I used to use the cloud version of Ninox to all my databases and used to import data via a CSV file.

Recently i moved from the cloud version to the Mac App. To my surprise, the same CSV file now is not working. Ninox simply doesn't recognize the fields on the CSV and now i can not import data correctly because i can not make the association between the diferent fields. Is there a solution for this? I really need help, it's a database with more than 40000 records that i need to update regularly and was working just perfect on the cloud version. Incredible how this is not working on the mac app, really....