There's been several reports of users not being able to post entries etc Bloop saying that the page has not been found or the diary URL might have changed.
This is indeed a bug, that Steve and myself has found and squashed. We thought we had already squashed it, but its sister-bug was still lurking around in the depths of Bloop.
We believe that we have located and squashed each possibility of this bug. If you do have any of these kinds of bugs please do open a support ticket, or send myself a message here on Bloop.
Feedback is what we need! We have added in some automated reporting for this particular bug, but just in case it doesn't get caught by this, we would need your help!