doodark on "[Plugin: WooCommerce] Product images not showing when thumbnail is clicked"

As per the title, the product images are not displaying when a thumbnail is clicked on the product pages.

I'm using the 'Product Gallery' feature in Mystile theme. Here is a practise product as an example

All I need is for the selected image to show up where there is currently a grey broken link image on the page.

The strange thing is that when I check the 'Enable Lightbox for product images', the image link appears to work and the image pops up with lightbox. Unfortunately, I dont want to use lightbox, I just want the image to appear above.

Can anyone help? I've been trawling the forums for literally hours now trying to find a fix.

https://wordpress.org/plugins/woocommerce/