A FileUpload field is assigned a maximum file size of 5MB. If you select files smaller than 5MB, the file name and the remove button are displayed and the file is uploaded correctly when the form is sent. If I select a file larger than 5MB, the file name + remove button is not displayed but the file is still uploaded when the form is sent. Feedback/Message when selecting a file that is too large would also be great.
Those file limits entered in the builder are only for client validation. If you want the server to avoid to upload files depending on the file size, you can use the filter 