Make sure that you have enabled each of the “Go to next playlist item if” options in the SWF tab in Preferences.

Additionally, you can decrease the waiting period by moving the "The player stays on the same frame more than" slider in Preferences. That will help Elmedia Player to determine whether the current movie has ended.

However, some SWF files may have ActionScript that can trick Elmedia Player by rewinding the current movie to the first frame and, therefore, it will keep playing time after time.