Long events do not show as such in the small calendar

Dear support team,

I am using this plugin successfully since a while and like it very much.

However, despite the settings I made for small (and large) calendars, long events (more than one day) will correctly show as such in the large calendar BUT NOT in the small calendar (only the first day is shown here).

I have checked that this setting is done correctly in the small calendar settings but it does not work in my environment.

What could I am doing wrongly here?

Thanks in advance for your support!

Kind regards

Michael