Rooms Dropping out of Schedule

Hi, I’ve just started playing with this integration. Looks really good so far, easier than using the wiser app, especially being able to use it on a full size screen!
I have noticed one strange happening though by making a mistake. If I select one schedule, then select the one next to it so’s they both are selected, then deselect them both, then exit from HA, when I look on the Wiser app the schedules I had selected no longer have any rooms in them. I have to add the rooms back into the two schedules.

Which schedule integration?

There is a core schedule helper and a number of third party schedule integrations.

Apologies, this didn’t go where I intended it to go. Please ignore it, or better still delete it. Thanks.