UBB.threads PHP Forum Software Community Forums Thread Like Summary - Edit User Not Updating

Just updating a user display name. When I make the change and click "Update Member" nothing happens.

I looked at the permissions in the /forums/scripts directory and they are all 644. (including editusers.inc.php, if that is the relevant script).

This directory is not specifically mentioned in the "Set File & Directory Permissions" for Linux servers.

Should the permissions be something else?

Or am I barking up the wrong tree and I have some other setting incorrect that is making this unable to save the user edit?

Thanks!

Check all "tabs" on the edit profile screen after attempting to submit a change, does anything have a red box around it? (HTML5 warning that elements aren't completely filled in that are required to submit a form)