Hello,
It is this plugin – http://codecanyon.net/item/woocommerce-product-filter/8514038 that we are using, not the one I stated above. If I deactivate that plugin and remove the default shop page, it displays the results how it used to (see 1.png)
If I leave the plugin deactivated and set our default homepage, the results are shown a little bit messed up http://www.veedubtransporters.co.uk/?s=wheels&post_type=product&asp_active=1 (see 2.png and 3.png)
And then if I have the plugin active and either a default shop page set or not, the first issue that I contacted you about happens.
Kind regards,
Tom.