please do you reslove it .i have the same issue .if you have any good news please contact me bourahla.apicole@outlook.com

please i have the same issue .did you resolve it 

Now its woking well, i creat a event from facbk pixel after i deleted .i also delete some apps and i installed it . Also i contacte Facebook support

I have the same issue now im using add to cart and add payment info till to resolve it im in touch with facebook support