Quote Originally Posted by morrysmith View Post
Yes, I installed it on the newest version of zen cart(v1.5.7d), and it's not working but just keep refreshing the product info page about 2 times/every second.
And when I tested it on v1.5.6c, there is no problem.
That issue is addressed in: https://www.zen-cart.com/showthread....58#post1370158
As referenced by: https://www.zen-cart.com/showthread....63#post1371663
Found by going back 2 or 3ish pages.

Explanation of why that is occurring is provided back there.