Broken auto selection of the currency (geo API woocommerce) with WP Super Cache

Dear Support,

There seems to be a problem with the auto selection of the currency with the WP Super Cache.

According to the instruction we have installed the additional Country Caching For WP Super Cache plugin. Since however this plugin have not been updated for over 2 years we wonder if that might be the cause behind the problem with currency auto selection. We use the setting of Geo API to WooCommerce and enable Currency by Country (with auto currency selection chosen in the main setting).

When we clear the cache for a short time everything works properly. However after some time with the traffic on the live site the auto selection breaks down and selects a wrong currency for a new clear session (inconsistently with the geo ip location). The geo ip location works fine, as we can test it in your plugin’s System Status. But evidently the cached page is wrongly served. This is happening when we visit the main page (it shows in the currency bar an erronously selected currency — also not a default one), but strangly if we go into the shop’s page the auto selection is working properly.

Have you tested on your end the compatibility of the Multi Currency plugin with the current version of the WP Super Cache along with the old (not updated) Country Caching For WP Super Cache? Why is this difference of behaviour on the main page (not working) and on the shop page (working)? Thank you.