Users of New Outlook wondering where the option to open an attachment went have a culprit to blame – an Edge update. The issue underscores how interconnected things are in the Microsoft ecosystem. According to the vendor, an update to Edge 156 "unintentionally enabled an unnecessary configuration," which means some New Outlook users are unable to open email file attachments. An error stating the file cannot be opened also appears for some, along with an instruction to restart Outlook. However, the "Open" option goes away after the error is encountered. A workaround is to use "Save As" to save the attachment, and then open the file manually. Microsoft confirmed the issue yesterday afternoon in the advisory EX1528992, and early this morning began rolling out a fix to disable the "unnecessary" configuration. It expects that it’ll take 12 hours for the fix to be rolled out, and users will have to close and reopen New Outlook to feel the benefit. The problem raises some interesting questions…