One-time recurring task not visible in scheduled tab

[WicioW]

Screenshot_Frontpage.png
this screenshot shows that one-time task should be visible on scheduled tab but it does not work like that.
Either in my private project or when running your example only recurring task are visible.
Shame because I would like to see my one-time tasks and be able to rerun them.

[EDIT] You can close/delete this issue. After deeper analysis I think problem lies in db-scheduler.