"Completed Appointments" moved to "Removed Appointments" section

Hi,

Just noticed that almost all "Completed Appointments"[app_my_appointments status="completed"] moved to "Removed Appointments" [app_my_appointments status="removed"].

Why would that happen? How can I check appointment record if all completed appointments moved to removed appointments section. What's next to these "moved" appointments. Will they be deleted from database/record?

thanks,