Schedule helper shows completely erratic behaviour after working fine for one day

Hi all HA-friends,

I’ve set up a schedule that worked fine.

Today I tried to add an event. When saving the schedule, my change disappeared.
When opening the schedule again, it showed a completely empty schedule.

But when trying to add an event at a place, where an event was before, it gave me
the “duplicated event” - error message. The schedule is still working with the events,
that I entered first. But no changes or new events can be entered.

Seems to be a problem of displaying and entering data. All events, that are entered,
disappear with hitting the SAVE button.

Tried:

  • restarting HA
  • empty browser cache

No effect.

Kind regards
Mike

Known issue.