I previously used the older 1.3.2 and 1.3.3 premium versions of this plugin and found that due to some oddities with my theme, it would remove showing the bullets in the advanced widget. My debug steps previously were to add the following CSS to the events-calendar-pro.class.php file.
ul.upcoming {
list-style-type:square;
padding-left: 15px;
}
ul.upcoming>li {
padding: 3px 0px;
}
I tried that with the newer versions but unfortunately that didn’t work. I checked the outputted HTML and the unordered list still seems to use the “upcoming” class so I’m not sure what to try next.