Moderator
Jan Dembowski
(@jdembowski)
Forum Moderator and Brute Squad
Try the usual troubleshooting steps: disable all of your plugins and try to reproduce the problem.
If the tags work, then re-enable each plugin one at a time until the tage break again. When that happens, that’ll be the plugin that is interfering with your tags.
Thread Starter
nivosh
(@nivosh)
Hi jdembowski,
I forgot to mention that I already tried the troubleshooting steps.
I disabled all the plugins, and even switched to a different theme.
I still can’t add tags to the posts.
Moderator
Jan Dembowski
(@jdembowski)
Forum Moderator and Brute Squad
Last thing to try (if you have not already) backup your files and database, install http://wordpress.org/extend/plugins/wp-dbmanager/, and run a repair on your database.
It’s a WAG on my part but your options table and/or database might be the issue.
Also put on a fresh copy of WordPress 2.8.5 in case it’s a messed up file giving you issues.