Page Break Buttons: Unable to move/edit/delete page break button on last page while using v4 builder.

We built out this form and for some reason there is this random Back button at the bottom of the last page.

All we are trying to do is have that back button show up before the submit button, but we can't move it for some reason.

We also tried just deleting it, but we can't do that either.

Please https://www.jotform.com/build/71153748711153 

I have been testing this and I can see what you're reporting; however, upon my test I can see the last page break button is added automatically at the very bottom of the form, this to avoid users to add a new page break just in case users want to go back from the last page. 

This is the reason why the last page break buttons cannot be moved above the submit button, it also would create a new page leaving the submit button in a separated page. 

However, it is possible to hide the last page break button with custom CSS code, please try with this one: 

#form-pagebreak-back_283{

display: none;

}

This guide will help you to add the code: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

Here's also my cloned form of yours where you can see the result: https://form.jotformpro.com/71166938611965 

Hope this helps.