re-add 8 second magical delay, turns out it's important

src/js/controllers/buyCoinbase.js

@@ -198,6 +198,7 @@ angular.module('copayApp.controllers').controller('buyCoinbaseController', funct
             });
           };
 
+          $timeout(function() {
             var tx = b.data ? b.data.transaction : null;
             if (tx) {
               processBuyTx(tx);
@@ -213,6 +214,7 @@ angular.module('copayApp.controllers').controller('buyCoinbaseController', funct
                 processBuyTx(tx);
               });
             }
+          }, 8000);
         });
       });
     });