Generic child variant not working since update to VirtueMart 3.2.4

[postkat]

Since the last update there is a problem with the Generic child variant in both details and category view.
The URL changes when you choose a variant but the price doesn't change and the buy now button doesn't appear.
I have tried to disable modules and plugins that could conflict but that didn't help.

Also tried protostar and beez3 template but the problem remains.

Joomla! 3.8.0
VirtueMart 3.2.4

[Studio 42]

Some link to test ?

[postkat]

https://www.daylightlamps.co.uk/high-frequency-fixtures/parabolic-fixtures/t8-mat-parabolic-fixture-mounted.html

[Studio 42]

It's a javascript problem.
Uncaught TypeError: Virtuemart.stopVmLoading is not a function
Check if the template have no update.
This file vmsite.js should be loaded using PHP : vmJsApi::jSite();
, but is not loaded.
Check your Virtuemart config if you have selected to load Vm javascript or at last resort add it in your template.

[postkat]

Thanks!
Still don't know why vmsite.js did not load on all websites having te same problem but adding it worked.
Could it be the PHP version on the server? (PHP 7.1)

[Studio 42]

Perhaps they moved the php code in the last VM release and you have some overide in your template.
It's very hard to know without access to the PHP files.