Deactivate cache
During the setup of Borlabs Cookie 3.0 you should completely deactivate caching systems (and other optimization plugins such as Autoptimize and Co.) and leave them deactivated.
Please do not rely on the functions to clear the cache.
After you have set up and tested Borlabs Cookie 3.0, leave the cache deactivated for another 2-3 days to ensure that everything works as desired.
We currently find in support that most problems are due to the cache not being properly cleared and filled with the new data from Borlabs Cookie 3.0.
Problems with Polylang, TranslatePress or WPML
If you are using one of these plugins, please check for each language whether the name of the group is in lowercase under Service groups in the ID essential. If this is the case, click on Reset default service groups below, then the name of the group should start with a capital letter.