Custom Regex Validation only validates the first Regex expression in all different fields. I give 3-4 different regex expressions and class names for each line in vain. What could be the problem?
If you login wp-admin page shometing stil wrong. All time show wrong message in on regex fields. If you logged out is fine all. I think this is an issue.
Just for test, can you disable others plugins and see if that still happens ? I doubt some other plugins are also using jQuery validation in admin. You can later activate them one by one. It will help us to find the conflict as work as per it.