> My money would fall on either the application being in error or "docker" being broken. If the OP just said "Windows" as opposed to Docker, I would have immediately jumped to the "It's the UAC virtualization that's messing with you." answer, since opening the seemingly same file and ending up with two different contents based on which process opened it (and that process' security status), is so very typical of Windows virtualization. Could it be Docker has a similar "feature"? Any Docker experts here?