Categorization bug in WordPress

I’ve been using WordPress for years and in the main, it’s a fantastic piece of collaborative software. However, the fact that the standalone version which is installed on one’s own server is supported mainly by community effort instead of a dedicated team means that when a particularly unusual bug crops up, it’s difficult to get a response or solution quickly.

The problem I’ve been noticing over the past few months is particularly annoying, and there seems to be no obvious cause. Searching Google and the forums has found no reference, so I can only assume that something within my own configuration is awry. I will continue to search for the problem, but here’s a breakdown of what’s happening.

When I create a new article (which WordPress calls a “post”), I assign it to a category using a list I defined when setting up the site. The problem comes when re-editing the post: in many instances, the system then adds the post to another category at random when saving. I can only surmize that WordPress contains a bug when working with nested post categories, so that’s where my investigations will start.

I am using WP 2.8.4 on a standard English installation and the following active plugins.

  • Askimet
  • Duplicate Sidebar Widgets
  • Flexi Pages Widget
  • Google XML Sitemaps
  • Kimili Flash Embed
  • List Subpages
  • Markdown Extra
  • More Fields
  • PostMaster

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