Reference selector validation issue

I am using reference selector that is fetching projects based on business units selected. Projects is required field Also, i have used XPath for selectable objects. Issue is: when the page loads, Project dropdown gives required error, even when i haven’t clicked save yet,   Attached are the screenshots.     This seem to be happening because of  selecting a path in selectable object tab.  How can this be corrected?
1 answers

Does the validation is handled in Microflow ?

I would prefer to perform validations in the save microflow and show validation messages using validation feedback activity.