All Import Pro vs. Events Manager

I tried to import csv-based calendar data with All Import Pro plugin to wordpress Events Manager. allthough the import happened (imported dates were displayed in the overview list) the single events themselves didn’t work. everytime i entered a single event the specific metadata like starting date, location etc. were forgotten although there were displayed within the list correcty. does anybody have expirience with this issue? any ideas?

thank you in advance, alex

https://www.ads-software.com/plugins/events-manager/