Data Change event differs when logging is off

2014-07-23 00:37:43.935 PDT [pool-7-thread-1] DEBUG o.o.b.b.t.p.LinkstateTopologyBuilder - Missing attributes in IP IpPrefix [_ipv4Prefix=Ipv4Prefix [_value=39.39.39.39/32], _value=[3, 9, ., 3, 9, ., 3, 9, ., 3, 9, /, 3, 2]] prefix PrefixCase [_advertisingNodeDescriptors=AdvertisingNodeDescriptors [_asNumber=AsNumber [_value=72], _cRouterIdentifier=IsisNodeCase [_isisNode=IsisNode [_isoSystemId=IsoSystemIdentifier [_value=[0, 0, 0, 0, 0, 57]], augmentation=[]], augmentation=[]], _domainId=DomainIdentifier [_value=673720360], augmentation=[]], _ipReachabilityInformation=IpPrefix [_ipv4Prefix=Ipv4Prefix [_value=39.39.39.39/32], _value=[3, 9, ., 3, 9, ., 3, 9, ., 3, 9, /, 3, 2]], augmentation=[]] route LinkstateRoute [_identifier=Identifier [_value=1], _objectType=PrefixCase [_advertisingNodeDescriptors=AdvertisingNodeDescriptors [_asNumber=AsNumber [_value=72], _cRouterIdentifier=IsisNodeCase [_isisNode=IsisNode [_isoSystemId=IsoSystemIdentifier [_value=[0, 0, 0, 0, 0, 57]], augmentation=[]], augmentation=[]], _domainId=DomainIdentifier [_value=673720360], augmentation=[]], _ipReachabilityInformation=IpPrefix [_ipv4Prefix=Ipv4Prefix [_value=39.39.39.39/32], _value=[3, 9, ., 3, 9, ., 3, 9, ., 3, 9, /, 3, 2]], augmentation=[]], _protocolId=IsisLevel2, _routeKey=[0, 3, 0, 48, 2, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 26, 2, 0, 0, 4, 0, 0, 0, 72, 2, 1, 0, 4, 40, 40, 40, 40, 2, 3, 0, 6, 0, 0, 0, 0, 0, 57, 1, 9, 0, 5, 32, 39, 39, 39, 39], _key=LinkstateRouteKey [_routeKey=[0, 3, 0, 48, 2, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 26, 2, 0, 0, 4, 0, 0, 0, 72, 2, 1, 0, 4, 40, 40, 40, 40, 2, 3, 0, 6, 0, 0, 0, 0, 0, 57, 1, 9, 0, 5, 32, 39, 39, 39, 39]], _attributes=Attributes [_asPath=AsPath [_segments=[], augmentation=[]], _communities=[], _extendedCommunities=[], _localPref=LocalPref [_pref=100, augmentation=[]], _origin=Origin [_value=Igp, augmentation=[]], augmentation=[]]

When logging is on for whole date change event, this exception does not shows up.