Recurrent Payments (Suscriptions) with Paypal Sandbox

I am testing the new recurrent donations feature in Sandbox mode.

When I make a payment, I receive the donation (the first one), but if I entered to my sandbox account and I go to Preaproved Payments
(https://www.sandbox.paypal.com/us/cgi-bin/webscr?cmd=_manage-paylist)
I don’t see anything to cancel.

It’s like it receive the donations but wasn’t marked as a recurrent.

Did this happen to you? How did you solve it? Or is it a Sandbox issue?

Thanks!

https://www.ads-software.com/plugins/seamless-donations/