Hi Buddy,
This is because the new version allows different layouts. Kind of irritating that they don’t mention it but it should be in you theme options settings. I’m not sure what theme you are using and I’m too lazy to google it but underneath your theme options > woocommerce settings it should have the column settings. This is different than your main theme layout settings so that’s why it can be confusing. If this helped you, buy me a beer.