v1.5.7 Not Displaying 'Customers who bought this product also purchased'

[hws]

Zen Cart 1.5.7
PHP 5.6.35
MySQL 5.6..41

Fresh install, out of the box, no modifications, no modules or templates installed.
No display of products for 'Customers who bought this product also purchased....' at bottom of product info page.
No errors in logs, page continues to load fine.

I'm looking for some clarification if anyone else has this issue and it is a bug or maybe due to PHP/MySQL versions.
ZC 1.5.7 is stated to run on the versions of PHP and MySQL being used, so hopefully that is not the cause.

[swguy]

Fix:
https://github.com/zencart/zencart/pull/3848

You should still update your PHP. The version you are running does not receive security patches.

[hws]

Thank you.
Agreed regards the update of PHP. The client is currently updating Zen Cart from 1.5.3 so PHP 5.6 is the upper limit for right now so that the current site can remain live while the upgrade is completed.

[dbltoe]

Thank you.
Agreed regards the update of PHP. The client is currently updating Zen Cart from 1.5.3 so PHP 5.6 is the upper limit for right now so that the current site can remain live while the upgrade is completed.

If you have cPanel, you might want to check out the method of creating a subdomain for upgrade at https://www.zen-cart.com/showthread....18#post1371618