I have radio buttons and it shows the label Test Input but when creating an array type the label is not showing, is label not a feature for arrays or multi select checkbox?
Normal arrays show a label. For multi-select checkboxes we currently don’t render a label. You can solve this on your side by creating a custom multi-select checkbox renderer which actually renders a label. The easiest way is to copy the existing one and just add whatever you need.
If you find a good solution feel free to contribute back to JSON Forms