Symptom:
Few counters are not pegged in TAI stats
1.  X-based handover: Failures :                            
2.  Attach Reject:        Decode Failure:                  
3.  Service Reject:       UE Identity Unknown:          
4.  Service Reject:       Implicitly Detached:             
5.  TAU Reject Intra MME:       Decode Failure:

Conditions:
The following counters are not pegged when the corresponding events happens.
1.  X-based handover: Failures :                          
2.  Attach Reject:        Decode Failure:                    
3.  Service Reject:       UE Identity Unknown:          
4.  Service Reject:       Implicitly Detached:            
5.  TAU Reject Intra MME:       Decode Failure: