Garmın calender set up

Hello.ı set 4 dıfferent workout to garmın connect calender.ı see workouts at my forrunner 235.ı complete traınıngs and save them.when ı go back to garmın connect calender web page ,ı see fınıshed workouts wıth red color.but also ı see same workouts wıth purple.at same day ı see 8 traınıngs at calender.why workouts became double half completed wıth data and half wıthout data wıth purple color. Thans for your support