[snip]
My experience has been that support will not reply. But maybe that's unusual, despite what I've seen here. It could be selection bias, that those with issues post more often. Especially since the forum requires a support request to join, so there may be a smaller population here. That may be some form of good customer service that I am unable to understand.
I would suggest you close the launcher, and re-open it. Try again. Repeat. Based on reports from other users, this is the only fix I've heard of so far.
If you get an official answer, please do post it. I'd love to know what the official fix is.
[Edited for Discussion of Disciplinary Action]