Como eu depuro o rastreamento de eventos do Google!

Basta instalar isso!

https://chrome.google.com/webstore/detail/event-tracking-tracker/npjkfahkbgoagkfpkidpjdemjjmmbcim?hl=en

OU

https://chrome.google.com/webstore/detail/google-analytics-debugger/jnkmfdileelhofjcijamephohjechhna

Anatomia do acompanhamento de eventos

https://developers.google.com/analytics/devguides/collection/gajs/eventTrackerGuide

mais lendo https://developers.google.com/analytics/resources/articles/gaTrackingTrouwagen#gaDebug