RoboMirror crashes after manually changing the schedule

[muspilli]

-> open Taskschd.msc (WIN7), the task scheduling GUI
-> look for a RoboMirror entry
-> change that entry manually, for example: let start the task 20 minutes after the current user has been logged in (or something similar); do not change anything else
-> save that new schedule
-> run RoboMirror, select this bespoken mirror task, click on the button "Schedule"
-> the programm crashes immediately

The comment in the last error popup is:

---

RoboMirror

Oops, an unexpected error has occurred:

System.NotSupportedException: The existing scheduled task's trigger is not supported.

bei RoboMirror.GUI.ScheduleTaskDialog.OnLoad(EventArgs e)

bei System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)

bei System.Windows.Forms.Control.CreateControl()

bei System.Windows.Forms.Control.WmShowWindow(Message& m)

bei System.Windows.Forms.Control.WndProc(Message& m)

bei System.Windows.Forms.Form.WndProc(Message& m)

bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)**

OK

Perhaps you could find a solution to trigger other events than only time-based.
Thank you in advance!