Fixed another of the same bug in UsergridClient
diff --git a/Source/UsergridClient.swift b/Source/UsergridClient.swift
index 24bc7aa..7cb3a14 100644
--- a/Source/UsergridClient.swift
+++ b/Source/UsergridClient.swift
@@ -162,7 +162,9 @@
                 self.currentUser = UsergridUser.getCurrentUserFromKeychain(self)
             }
         }
-        UsergridDevice.sharedDevice.save(self)
+        DispatchQueue.global().async {
+            UsergridDevice.sharedDevice.save(self)
+        }
     }
 
     /**