Server code triggers but doesn't show exception

Hello Epicor gurus,

I have an strange behavior in epicor were I am throwing an exception in the update preprocess method (external code) of the ud 14 table which is attached to the non conformance screen but it doesn’t seem to publish anymore the exception have you got any similar issue, the server is being hit and I can debug the method. I try also calling the business ObjectException but it didn’t help , and as far as I remember it was throwing an exception before.

Another curious thing is that exception from the NonConformance object seems to work fine.

Thanks a lot

                /*throw new Ice.Common.BusinessObjectException(
                                new Ice.Common.BusinessObjectMessage($"Please Review Entered Quantity\n Operation Run Qty Current Value Is {orgOprRunQTY}")
                                {
                                    Type = Ice.Common.BusinessObjectMessageType.Error,
                                });*/
                CallContext.Current.ExceptionManager.AddBLException($"Please Review Entered Quantity\n Operation Run Qty Current Value Is {orgOprRunQTY}");
                CallContext.Current.ExceptionManager.AssertNoBLExceptions();

Epicor version is 10.1.400.17