Our support team is continuing to deal with some ongoing issues with the forum. The problem is that years of tinkering with the forum have left it in a nonstandard, difficult-to-debug state. The only efficient and effective way to fix all the technical issues with the forum is to create a new forum then move over the topics from this current one to the new one. This will allow for a fresh foundation and infrastructure, while also maintaining posts and users. Unfortunately, this approach does not preserve private messages.
Since members may have an accumulation of private messages they would like to hang onto, this is a heads-up that they may go away in the not-too-distant future, so if you want to save them, you should start working on doing so. We will give at least a week's heads-up prior to making such a move, but we wanted to give everyone ample warning. And rest assured that we would not be considering such a drastic move if there were any good alternatives.
Edited to add: You can export all of your private messages by going to your private messages page, scrolling all the way to the bottom, and looking for the "Download all Private Messages as" option in the lower left-hand corner, which gives you the choice of several formats for exporting.