1

source/DeviceLibrary/acSingleStore/AC_SA_BoxBean_Partial.cs

@@ -144,7 +144,7 @@ namespace OnlineStore.DeviceLibrary
             }
             foreach (WaitResultInfo wait in list)
             {
-                if (wait.IsEnd)
+                if (wait==null|| wait.IsEnd)
                 {
                     continue;
                 }