Topic: Problems since upgrading WooCommerce 3.0

Hi
I updated WooCommerce 3.0 this morning and now seem to have some issues
1) Homepage sliders ‘Featured’ and ‘New/latest’ products cannot be updated.
I cannot change the ‘Featured’ products in the slider, currently I dont have ANY products set as ‘featured’ (starred in product list) but old ones still show.
I cannot change the ‘Latest’ products in the slider, I can remove but cannot add newly created products to the slider (although I can add older products).
2) WooCommerce says that some of my theme template files are out dated
legenda/woocommerce/cart/cart.php version 2.3.8 is out of date. The core version is 3.0.0,
legenda/woocommerce/cart/cross-sells.php version 1.6.4 is out of date. The core version is 3.0.0,
legenda/woocommerce/single-product/add-to-cart/simple.php version 2.1.0 is out of date. The core version is 3.0.0,
legenda/woocommerce/single-product/meta.php version 1.6.4 is out of date. The core version is 3.0.0,
legenda/woocommerce/single-product/product-image.php version 2.6.3 is out of date. The core version is 3.0.0,
legenda/woocommerce/single-product/product-thumbnails.php version 2.6.3 is out of date. The core version is 3.0.0,
legenda/woocommerce/single-product/related.php version 1.6.4 is out of date. The core version is 3.0.0,
3) I have tried to update the WPBakery Visual Composer plugin from ‘My Account’ page on here but its still the old version. Say version 5.1.1 but the download is still 5.1