Strange bug with repeaters

[Tom.]

Hi, 

I'm having a really strange bug with repeaters.

https://imgur.com/gIdIv8e
This is the repeater showing 3 items

https://imgur.com/RY7l01C
The count on the front is showing 3 items using <?=$page->repeater->count?>

When I add a new item
https://imgur.com/Ub3dFEC
So there is now 4 on the back end. The count is still showing 3 and nothing is being output despite all the fields being filled in. 

I can clone the new one I've created and nothing, however if I clone one of the items I've already created it shows up:
https://imgur.com/C77HirR

Despite the backend looking like this:
https://imgur.com/GY8yrhO

 

Edit:

Update - I've also noticed that all the fields are saving but the image field. I'm going to uninstall ProDrafts and see if it's that.

Edit:

This is a bug with ProDrafts