not sure if this issue already came up here, but I noticed that the product slider was broken after updating Royal to version 4.7.1. I then found out that this was caused by a spelling mistake in product-image.php:
Line 31: $slider = $etheme_global[‘sliders’];
“Sliders” doesnt exist. So I changed it to
Line 31: $slider = $etheme_global[‘slider’];
and the bug is fixed. Just wanted to let you know if someone else is experiencing this problem and in order to fix it in the next update.
ah ok I just found the problem: in theme options, there is the option “Enable slider for gallery images” and it was not active nor inactive – I think that this is a new feature?! I set it to “on” and now the gallery works like before.