Hi Patrick Bergin,
Thank you for reaching out on the Microsoft Q&A forum.
After the data preview is displayed, you must click the table that you want to load or transform. Once you select the table, the "Load" and "Transform" buttons will become enabled, allowing you to proceed with the desired action.
We tried it on our end, and it's working fine. Kindly refer to the screenshot below for further clarification.
If you are still facing any issue, please let us know in the comments and where you are encountering this error along with the screenshot for reference. We are glad to help you.
If the information is helpful, please Accept Answer and Upvote so that it would be helpful to community members.
Thank you.