WordPress v4.5 just got released and with it a whole host of new features. We’ve released WP Auctions v5.3 to coincide with it.
The “Traditional Display” has been updated to use the native jQuery UI tabs that ship with WordPress, so any conflicts or issues you may have seen in the past due to minor incompatibility issues between themes/plugins and our plugin should be more or less gone.
You will see the change in the Traditional Display tabs on the embed and the popup.