tfgcaixeta

Hi, i'm evaluating FileFort before buy, and i'm doing some tests. I tried to backup a folder with some files from my external hd to Google Drive, compresseded and so on. At this time everything worked fine. But after the first backup, as i configured, it was supposed to backup only the new files, once is a incremental backup. But it is backing up all the files again, even i just added a new file. Am i doing something wrong? Thank in advance