I can also confirm that the problem still (or again) exists - at least for 1 certificate that was deleted as it is no longer needed. Was this issue reported? I can't find an entry under reports?
I my opinion the biggest advantange of WPB is the simplicity of website creation. This in fact can be also a disadvantage for more advanced users, but overall it's a very good piece of software.
What I dislike, is the lack of image enlarging within the webpage (coolemail2 has pointed this out).