Hello @ rachell32,
We do fully translate the forms if you first set the language setting in your account to the proper language, and then create the form. Unfortunately, Welsh isn't currently offered as an account language which will still cause you to run into this issue.
You mentioned that you were previously able to adjust the language manually in the older version of the forms. You are able to still access our legacy version of the forms by going to Sign-Up Forms and choosing the Legacy landing pages tile at the bottom of the page. Does that still possibly offer a solution for you?
... View more