Hi Paul. I have not seen that issue anywhere yet. I recommend first checking for conflicts on the site to see if you have another plugin or theme that is interfering with that display. You can check for conflicts on the site using the Health Check & Troubleshooting Plugin from WordPress. We have an article on how to do that on our website here: Testing for a Theme/Plugin Conflict using the Health Check & Troubleshooting Plugin - Gravity Forms Documentation
If that does not help pinpoint the issue, and you are using the latest Gravity Forms release, I recommend opening a support ticket: Support | Gravity Forms Thank you.