Probelsm when adding K2 items to shortlist

Hi, there seems to be an issue on our website here , when you add a K2 item to add shortlist, it's not adding the correct item.

You can see by going here:

https://www.greatbritishvoices.co.uk/item/1597-amalia

It should be adding 'Amalia' but it's adding someone different. Any ideas please? We've just updated to the latest version and the site was running Joomla 3.6.5 when it had the problem, updated to 3.8.0 and it still has the same problem.

Hello Russell. This website does not use just the usual MyShortlist module, but has a few customizations we have made in the past.
Also, the page you posted redirects to 404.
So, please email me at me@mavxr.com to check this with more details.

Thanks again.

Hi, I have removed the html overrides now.

Could you please take another look? I unpublished 'Verity' from K2 to test. I have published again now, so 404 is no longer there.

The page is still sending me to a Not found link.
However, it did propose to go to https://www.greatbritishvoices.co.uk/female-voice-overs/amalia-at-great-british-voices
which does include MyShortlist and it works normally as far as I checked.

Please let me know.
Thanks again.

It doesn't add the correct person (voice) to the shortlist though, it's adding different people

Not on my end. Do you have any cache enabled?