@neilbert – Is there something unusual about the tag names you are trying to use? These should work just like a tag for a post and would have similar requirements.
Otherwise, although not too likely, it could be a conflict with another active plugin or your current theme. Have you tried deactivating all of your plugins, clearing your browser cache (and site caches if you are using a caching plugin), then reactivating the NextGEN plugin?
If this fixes the problem then it was likely one of the deactivated plugins that was causing an issue. Now, retrace your steps activating each plugin and re-checking to see if the problem returns. If it does then that last activated plugin was probably the one. Keep reactivating and in most cases it is also best to keep checking after each plugin, sometimes there may be more than one plugin on a site that will create an issue. If you do find one (or more) plugins causing this problem we would greatly appreciate your feedback on them so the developers may address them as soon as they can.
Also to note, in rare cases it may be the theme itself that is causing a conflict so while you have just the NextGEN plugin activated you might consider temporarily switching to one of the default WordPress Twenty series themes and see if this corrects the issue as well.
If the problem still persists after all of this we would still want to know, even more so, as we will still want to sort out the issue and may need additional details.
Thanks!
– Cais.
Cais –
The first thing you noted (“These should work just like a tag for a post”) made me think… let’s just try adding a tag through WordPress. It failed. So looks like it’s not an issue with your plugin. 🙂
Thanks for the help – off to troubleshoot that little surprise.
-Neil
@neilbert – Thanks for the update! Best of luck finding what is causing the problems on your site.
– Cais.
For anyone who got here, my problem was that the ID field for several of my WordPress tables lost the auto increment flag.
@neilbert – Thanks for the update!
– Cais.
