This post was originally a duplicate of the next most recent one in my history. Initial attempt to Post resulted in the alert shown in the attached screenshot ("Post could not be created").
Same exact thing occurred upon attempt to revise this post.
@aschectman, this is an issue that is being worked on. Issue seems to be when there are any Tags added to the post.
Sorry for any confusion, @aschectman. We're working on getting this resolved as Shaya mentioned above.
