When looking at the documentation for DropDownList I noticed this bug visible in the sample for "Adding mandatory asterisk to placeholder and float label":
https://ej2.syncfusion.com/react/documentation/drop-down-list/style#adding-mandatory-asterisk-to-placeholder-and-float-label
- the component initially has no value
- you click on the component to focus it and the placeholder pops out above and the drop down list appears
- you select from the list and the value is shown ok and the placeholder remains above the list
- but if you then click elsewhere on the page so the component loses focus the placeholder returns to being inside the component so it's overlapped by the value
My guess it's a bug on the component's handling of losing focus whereby it's failing to handle that a value has been selected and that it shouldn't then return the label inside the value display area.
Screenshot to show state of component after value selected and then focus lost:
Edit: sorry, this should have been a bug report not a feature request!