Changes to settings not reflected in main site

Sorry guys, have another issue.

Jigoshop -> Settings -> Catalog & Pricing -> Catalog products per row – this was at one point set to 5, but I now want it set to 3 or maybe 4. However changes I make to this are not being reflected on the live site – it is still showing 5 items per row, no matter what I change the settings to.

Even weirder – I want to set the number of decimals to display on the price to zero, but every time I click save, it resets to 2. I have tried saving other numbers of decimals as well just to test, but it always just resets to 2.

Also, under Products & Inventory, I have “Hide out of stock products” selected, which used to hide the product variations that were out of stock from my drop down menus. These items are no longer being hidden.

Thanks for your help.

https://wordpress.org/plugins/jigoshop/