There have been some serious problems when editing posts with group pings in them. The group pings go through when you click the edit post button, but the post itself does not update. This has been happening since at least the 27th as far as I am aware.
Also, as of today (the 28th) the ping button on posts does not add a ping to the post section, and when you have clicked the button and you try to make the post, the page refreshes and you do NOT actually have a new post on said thread.
And the first post of a new forum is now back to hiding part of the title again, before there are other posts.