I've encountered some bugs in creating and editing meetups, numbers 429, 432, and 479 on issue list here. Bug 432 is that when I try to change the time, another copy of the meetup post is created, and the duplicate posts (as well as the original) can't be deleted.
Several times now I've had problems with meetups posting with the wrong times, and then been unable to fix them. Am I missing something on the meetup page that I could go to to correct the meetup, or is this impossible at the moment? Alternatively, is this something a moderator can do, and if so, who should I speak to, to get a meetup fixed?