Marketplace Unresponsive Links

I’m not sure if this is the right place to post, but I’ve been having an issue with the marketplace UI since a few updates ago.

The top category menu (i.e. Browse, Industries, Free, On Sale) displays the usual pull down, but the links appear unresponsive.

If this requires a reinstall of the launcher, is this possible to do without uninstalling UE4 and my associated plugins etc?

Any help would be greatly appreciated.