Hi al2min,
Thanks for reaching to us and appreciate your patience.
1. To assist you in the best possible manner, I kindly ask that you please provide me temporary wp-admin info (wp-admin URL, username, password) to the Private Content area, this will allow me to thoroughly investigate and address your concerns more efficiently.
2. Go to Settings > Discussion > enable this (https://take.ms/HWNjP) option. So as a result, the pagination will be shown when you have a lot of comments.
Regards,