Custom Property Editor - programmatically setting data for a DatePicker field

Questions
2

Might be a red herring// but are you matching the expected date format?
Looks like it could be
dd/MM/yyyy HH:mm:ss

though also have dates in

alias: ‘min’, value: ‘2021-01-20 00:00’,

Umbraco-CMS/src/Umbraco.Web.UI.Client/src/packages/property-editors/date-picker/property-editor-ui-date-picker.stories.ts at release-16.1.1 · umbraco/Umbraco-CMS