I have searched around for a solution to this but unfortunately it seems it does not exist yet. I have a classic form (2016) which has multiple choice fields in the form of checkboxes. Recently I was notified of a user who could see everything EXCEPT the check boxes themselves. I thought it could just be a browser issue but the user tried multiple updated browsers. I also shared the SharePoint site with the user in case it was a permissions issue, which still did not fix the problem. Any insight would be much appreciated.