After running a discovery search on an area and using the Visualize tab to then toggle through the returned dates using the arrows next to the calendar icon, each step doesn’t actually take you to the next scene but the day that follows it (day after scene collection) so you scroll through and you keep advancing to a no data display. You need to actually go into the calendar and pick the dates that show data are collected. So a quick scan through sequential dates isn’t possible. This seems like a new problem. Have always had great luck doing this.
we just deployed a new version of EO Browser (v.3.20.1 - small number at the bottom of the sidebar) that fixes your issue. You might need a hard refresh of your browser to get the new version (Ctrl (Control) + click F5).