Again just now: Post #169 appreared about 105 times on my screen, but the problem was solved when I refreshed the page. In this case, the echoed post was the second of four that were done while I was writing my own post, although the third and fourth ones as well as my own didn't appear until I did the refresh. As before, I was using the Post Quick Reply function but it seemed to "hang" briefly. This happened in the BA forum, in the "Curtailment of lounge...." thread.

ADDED: It happened yet again, in the same thread. This time the post with all the echoes was #191, which was the middle one of three that were made as I was writing my post. Post #192 and my post didn't appear until I had refreshed the page to make all of the echoes disappear.