I just sent someone a PM but when I checked on sent messages it doesn’t show that it was sent. I was directed back to the home page. Didn’t have a problem with sending PM’s on the old forum
Double check and make sure the appropriate box is check-marked to ‘save sent messages’ in your Profile/Messaging settings, settings will have changed with the new forum.
That is most likely the cause as this option is off by default in the new forum settings. Previously it was enabled by default.
I did check-mark the “save sent messages” box.