XF 1.4 "You have already completed installation."

Thank you. Yes, I just came to the same hypothesis. Luckily I believe my local files were all up to date. I merged the files locally this time and am uploading everything now. I'm using Transmit for FTP, and I didn't realize that drag-and-drop replace would replace folders rather than files. This is not the way Finder works on Mac, for instance. Hopefully this works!