Autorename for existing files on upload does not rename .NET

[kokoko]

Here is the piece of code which is supposed to rename an existing file and upload it to Dropbox. It simply does nothing. What am I missing here?

using (var memFile = new FileStream(srcFile, FileMode.Open, FileAccess.Read))
{
var uploadFile= await dbx.Files.UploadAsync("/myfolder/" + fileName, WriteMode.Add.Instance, body: memFile, autorename: true);
}

Any help would be appreciated.

[Greg-DB · Accepted solution]

Are you uploading the same data again? If the data is exactly the same as what already exists at the destination path, no conflict will occur and it won't create a renamed copy.

[kokoko]

I thought only the file name is important. I just changed the file content and it renamed the file as expected. Thanks for that.