UNSOLVED Outgoing link changes to lowercase in upload folder

[Giggiux]

So, I started uploading files in the public/uploads/file via scp.
The topic I created/create with the write-api have as content more or less only a link with code:
[file-to-download's name](/uploads/files/timestamp-File-To-Download-s-Name).

The link in the first topics works perfectly, but in the latest 4/5 topic (and in the new ones I create) the link, when clicked, change automatically to lowercase, resulting in an error "Not Found". But if I copy the link from the HTML (where is not lowercase), it does download the file.

What can be? That changes those links?