Hi Danilo thanks for posting in the community! I’m sorry for the inconsistency you are seeing when downloading your document and am happy to help. Since this is related to your document I'm going to move this post to a private ticket so that I can take a closer look. Thanks for your help and patience!

For anyone else with problems with exporting your documents please submit a ticket here along with a screenshot of the problem and the URL of the document you're not able to download.