You can enable debugging in the tracking script. Just add the following line in the h._hjSettings line:
hjdebug:true
<!-- Hotjar Tracking Code for www.example.com -->
<script>
(function(h,o,t,j,a,r){
h.hj=h.hj||function(){(h.hj.q=h.hj.q||[]).push(arguments)};
h._hjSettings={hjid:YOUR_CUSTOMER_ID,hjsv:HOTJAR_VERSION_NUMBER,hjdebug:true};
a=o.getElementsByTagName('head')[0];
r=o.createElement('script');r.async=1;
r.src=t+h._hjSettings.hjid+j+h._hjSettings.hjsv;
a.appendChild(r);
})(window,document,'//static.hotjar.com/c/hotjar-','.js?sv=');
</script>
When you use the tracking code this way, your console will display basically everything that happens during the process. For me, it was especially helpful as it helped me make sure that the virtual page views registered without any errors.
