Ever since I upgraded to WP 2.8.x, my New Post page is terribly sluggish because dozens, maybe even hundreds of numerically named Custom Fields have appeared there. The content is cryptic but obviously variations on the same theme. This is what a sample looks like when viewed in an export file:
<wp:postmeta> <wp:meta_key>41347</wp:meta_key> <wp:meta_value>wpAjax33f82191628f3f8bbaff215ee461093b0328b0a66f526cb3c491097f062e0bc496df3eb99b37be1f9e7d7e81c1157884</wp:meta_value> </wp:postmeta>
I've found nothing on this except a couple of instances where people have posed a similar question with no response. Does anyone have a clue about what has caused this or what it is? I started to delete them but it would take hours through the sluggish interface. It's almost unusable at this point.
Thanks for any help.