I did a lot of testing today, and I'm a little confused by the results. The fixes for C and for A seem to be working fine. However, I did discover what seems to be an issue that has me concerned. For meetings that were originally set up via AquaMail or via the O365 server (accessed on a browser), no problems. However, for meetings that both (a) were orginally set up via the Microsoft Outlook desktop app that's synced with O365 (and has been used a lot with no apparent problems) and (b) have zero other meeting invitees, then this problem occurs: when I changed either the meeting title or meeting time using the AquaMail app, the change was not synced back to the server. Oddly enough, if there are other invitees, then AquaMail syncs the title or time change back to the server as expected (and the other invitees are notified). Also, if the meeting was originally set up via AquaMail or via the O365 server, then AquaMail syncs the title or time change back to the server as expected. I know this sounds odd, but I've tested it a few different ways, and I'm pretty confident in the results. Any idea what's going on?