It sounds like the events are being loaded on the homepage in a way that may be getting blocked such as a Javascript function or widget. Perhaps Learning Mode could help?

From the Wordfence Dashboard click on Manage WAF. Then you will see Basic Firewall Options > Web Application Firewall Status. Change the option to Learning Mode. Now load up the homepage. This will help Wordfence learn that these background actions are normal and it will allow them in the future. After you have finished performing the actions, switch the WAF from Learning Mode back to Enabled and Protecting. Now test to see if these actions work correctly.

Thanks,

Peter.