Morning, I'm going through my (nearly full) Gmail account to reduce its size. Many messages will have attachments that are project specific rather than me specific so can be detached to our corporate file server. When I use the detach function, either with a single file or "Detach all", the functionality doesn't complete entirely. The attachments do get written to storage where I specified, however they aren't removed from the email they were in after I confirm the action is desired. If I look at the message again both via Thunderbird or the Gmail UI the attachments are still present. I've also tried this with a message residing in a cPanel IMAP account (via Dovecot), and that worked fine. I suspect something specific to Gmail is stopping the detachment happening? Nothing in the Activity Manager or Error Console shows a possible cause.