-if the UE is unable to comply with (part of) the configuration included in the RRCConnectionReconfiguration message:
-if security has not been activated:
NOTE 1: The UE may apply above failure handling also in case the RRCConnectionReconfiguration message causes a protocol error for which the generic error handling as defined in 5.7 specifies that the UE shall ignore the message.
NOTE 2: If the UE is unable to comply with part of the configuration, it does not apply any part of the configuration, i.e. there is no partial success/ failure.
Ref : 331>22.214.171.124 Reconfiguration failure