Schedules deleted without any interaction

I’ve some schedules to switch on/off lights.
One off schedules gets deleted again and again. It’s a simple one to just switch off lights in a specific room at a given time ± random minutes.

Any idea?

Hi, did you select the repeat option? If you did not select the repeat option, the schedule will be automatically deleted once it activates. If you select the repeat option, it will not be deleted automatically.

If this does not resolve the issue, please share a screenshot of your schedule configuration.