form can still be submitted even when required field not ticked
I have created a form in INDD and then exported as Interactive PDF to Acrobat. I then edit all the fields here and adjust elements (Font and size) and check all required fields are correctly allocated. There is a tick box (read terms and conditions) at the very end that is set to required, but the form can still be submitted without this being "ticked" or selected. Is there a glitch? Should I be using a script in INDD to enforce this?