Application crashes in the IEnumConnections->Next method

//
// crash in IEnumConnection->Next method
//
void crash3( IQTCrashPtr qtObject )
{
	IConnectionPointPtr connectionPoint;
	IConnectionPointContainerPtr( qtObject )->FindConnectionPoint( __uuidof( IQTCrashEvents ), &connectionPoint );

	IEnumConnectionsPtr connections;
	connectionPoint->EnumConnections( &connections );

	DWORD fetched;
	CONNECTDATA connectionData = { 0, 0 };
	while( connections->Next( 1, &connectionData, &fetched ) == S_OK) // crash here
	{
		if( connectionData.pUnk )
			connectionData.pUnk->Release();
	}
}