Unable to connect to PayPal account with PayPal invoicing integration in live mode

For Live Mode I keep trying to connect, and it successfully logs me in to Paypal but the part on the Paypal Invoice Connect area says Failed! It worked once, and I was able to receive the invoice on Paypal, but it was a test I did in Live Mode, and I tried to do it again in Test Mode but it asks me to sign up, not sign in which is strange because I already have a Paypal account.

I have tried connecting PayPal invoicing to one of my test forms which seems to be working fine. Could you try logging into a private/incognito window or a separate browser or using a different device  to see if that helps?

Please get back to us if you need any further assistance. We will be happy to help.  

Thanks. I had better results with Braintree sandbox integration. When I go live if I have any questions or need help, I'll ask support.