Inconsistent Issues loading the Leaky Paywall

I’m running into an issue with the plugin where we are constantly getting inconsistent results with the plugin. In some instances it will prompt correctly after 3 article views, other times it won’t prompt at all and in some circumstances it will prompt after a random number of article views.

It appears to be linked to the Cookie issuem_lp not saving or remembering the number of articles that have been viewed for certain users and browsers.

Cookies are managed through Cookie Yes on the website with the ‘issuem_lp’ cookie being categorised as ‘Neccessary’ to ensure that it is never blocked. I’ve also tried disabling all server side caching and testing in an incognito Chrome browser window.

Do you have any known issues with Cookie Yes configurations or any suggestions on what I can do to get the plugin to consistently work?

The page I need help with: [log in to see the link]